Events

Information Session: Knight-Hennessy Scholars

A Magical Pursuit by Professor Siew Ng - Inaugural Lecture of the Croucher Professorship in Medical Sciences

Partner institutions congratulate CUHK on its diamond jubilee

CUHK 60th anniversary | Event showcase

CUHK 60th Anniversary Commencement Ceremony Highlights

CUHK 60th Anniversary Commencement Ceremony (Full version)

Inauguration Ceremony of the Choh-Ming Li and Wei Lun Professorships and Presentation of Teaching and Research Awards

Pleasure in the Pandemic Joint Performance

The 91st Congregation

Pleasure in the Pandemic Joint Performance

Pleasure in the Pandemic Joint Performance

CUHK Entrepreneurship Competition 2022 Eight Finalists Compete for the Championship!

Pleasure in the Pandemic Joint Performance

CUHK Mooncake - Send Happiness And Reach Everyone

Shared Root · Shared Future CUHK & CUHKSZ Online Performance Celebrating the 25th Anniversary of the Establishment of the HKSAR

Flag-raising ceremony in celebration of the 25th anniversary of the establishment of the HKSAR

CUHK celebrating the 25th anniversary of the establishment of the HKSAR (Simplified Chinese version)

CUHK celebrating the 25th anniversary of the establishment of the HKSAR (Traditional Chinese version)

Multi-cultural Music Theatre Project - OASIZ

Pleasure in the Pandemic Joint Performance

Twentieth Honorary Fellowship Presentation Ceremony

Pleasure in the Pandemic Joint Performance

Pleasure in the Pandemic Joint Performance

Ceremony for the Inauguration of the Choh-Ming Li Professorships and Presentation of Teaching and Research Awards

90th Congregation (Conferment of Master’s and Doctoral Degrees) – Faculty of Education

90th Congregation (Conferment of Master’s and Doctoral Degrees) – Faculty of Business Administration

90th Congregation (Conferment of Master’s and Doctoral Degrees) – Faculty of Law

90th Congregation (Conferment of Master’s and Doctoral Degrees) – Faculty of Medicine

90th Congregation (Conferment of Master’s and Doctoral Degrees) – Faculty of Arts

90th Congregation (Conferment of Master’s and Doctoral Degrees) – Faculty of Engineering

90th Congregation (Conferment of Master’s and Doctoral Degrees) – Faculty of Science

90th Congregation (Conferment of Master’s and Doctoral Degrees) – Faculty of Social Science

90th Congregation (Conferment of Bachelor’s Degrees) – Chung Chi College

90th Congregation (Conferment of Bachelor’s Degrees) – New Asia College

90th Congregation (Conferment of Bachelor’s Degrees) – United College

90th Congregation (Conferment of Bachelor’s Degrees) – Shaw College

90th Congregation (Conferment of Bachelor’s Degrees) – Morningside College

90th Congregation (Conferment of Bachelor’s Degrees) – S.H. Ho College

90th Congregation (Conferment of Bachelor’s Degrees) – CW Chu College

90th Congregation (Conferment of Bachelor’s Degrees) – Wu Yee Sun College

90th Congregation (Conferment of Bachelor’s Degrees) – Lee Woo Sing College

The Opening Ceremony of Guangdong-Hong Kong-Macao Greater Bay Area Development and Output Showcase of The Chinese University of Hong Kong

Forum on Guangdong-Hong Kong-Macao Greater Bay Area Development and Output Showcase of The Chinese University of Hong Kong

承先啟後繼往開來　多位重量級嘉賓亮相粵港澳大灣區發展論壇！

粵港澳大灣區發展論壇暨香港中文大學大灣區發展成果研討會 10月28日隆重登場！

楊振寧教授相片集

中大好友向楊振寧教授祝壽片段

CUHK Innovation Day 2021 Explore the 5 Emerging Technologies

CUHK Innovation Day 2021: Innovation, Patents and Beyond

CUHK Innovations that Changed the World

CUHK Entrepreneurship Competition 2021 Five Finalists Fight It Out!

CUHK Entrepreneur Day 2021—Entrepreneurship‧Innovation‧Sharing for Good

Let Love Spread at Moon Festival

Nineteenth Honorary Fellowship Presentation Ceremony

Happy Hour「Entrepreneurship & Friends」-- 楊全盛校友談將兒時興趣發展成電競事業

Happy Hour「Entrepreneurship & Friends」-- 王澤睿校友談穩定的工作 VS 自己創業

Happy Hour「Entrepreneurship & Friends」-- 韋大成校友談產學研

Happy Hour "Entrepreneurship & Friends" -- 「整合生活」創辦人陳雅兒校友 談建立人脈的秘訣

Happy Hour "Entrepreneurship & Friends" -- 「WeWah音樂家」彭梽樃校友及「圍唱音樂」陳君明校友 談唱彈社企樂與路

Happy Hour "Entrepreneurship & Friends" -- 十曜工房蘇冠嵐校友 及 iSTEM 人工智能實驗室朱綺華校友 談科創世界中的創業女性

Happy Hour "Entrepreneurship & Friends" - 朗思科技有限公司聯合創始人及首席運營官陳思捷校友談大灣區創業

Happy Hour「Entrepreneurship & Friends」- 數碼港創業家總監蘇雅麗談審時度勢

Happy Hour "Entrepreneurship & Friends" - Across Asia Communications劉錦德談科技公關

Happy Hour 「Entrepreneurship & Friends」

Sports Festival 2021 Opening talk: Diversity in Sports – Strive for excellence. Appreciate the differences

Diversity and Inclusion Pledging Ceremony

View Ox-related Artworks for Chinese New Year’s Celebration

89th Congregation (Conferment of Honorary and Doctoral Degrees)

88th Congregation (Conferment of Master’s Degrees) – Faculty of Education

88th Congregation (Conferment of Master’s Degrees) – Faculty of Business Administration

88th Congregation (Conferment of Master’s Degrees) – Faculty of Law

88th Congregation (Conferment of Master’s Degrees) – Faculty of Medicine

88th Congregation (Conferment of Master’s Degrees) – Faculty of Arts

88th Congregation (Conferment of Master’s Degrees) – Faculty of Engineering

88th Congregation (Conferment of Master’s Degrees) – Faculty of Science

88th Congregation (Conferment of Master’s Degrees) – Faculty of Social Science

88th Congregation (Conferment of Bachelor’s Degrees) – Chung Chi College

88th Congregation (Conferment of Bachelor’s Degrees) – New Asia College

88th Congregation (Conferment of Bachelor’s Degrees) – United College

88th Congregation (Conferment of Bachelor’s Degrees) – Shaw College

88th Congregation (Conferment of Bachelor’s Degrees) – Morningside College

88th Congregation (Conferment of Bachelor’s Degrees) – S.H. Ho College

88th Congregation (Conferment of Bachelor’s Degrees) – CW Chu College

88th Congregation (Conferment of Bachelor’s Degrees) – Wu Yee Sun College

88th Congregation (Conferment of Bachelor’s Degrees) – Lee Woo Sing College

中大校友日主題曲《中大志》

【中大創業日2020】共生共創系列：《中大創業人II》新書發佈會

【中大創業日2020】中大創業大賽決賽

Welcome to the New Normal

CUHK Entrepreneurship Competition 2020　Five Finalists Compete for the Championship

Official Trailer: CUHK Entrepreneurship Competition 2020 Five Finalists

Choose CUHK Mooncake to Show Care at Moon Festival during the Pandemic

"HEART to HEART talks" Trailer

'Class Acts' Online Talk Series - Dr. Jeremy Teoh

'Class Acts' Online Talk Series - Prof. Catherine So

'Class Acts' Online Talk Series - Prof. Ian Morley

'Class Acts' - Prof. Steven Gallagher

'Class Acts' Online Talk Series - Dr. Tong Shiu Sing

'Class Acts' - Prof. Tingting FAN

'Class Acts' Online Talk Series - Prof. Irwin KING

'Class Acts' - Prof. Alan Chan

CUHK Art Museum Presents Exhibition of Rat Artifacts

Speech of the Vice-Chancellor in 87th Congregation (Conferment of Bachelor’s and Master’s Degrees)

87th Congregation for the Conferment of Bachelor’s and Master’s Degrees

Alumnus Norman Chan Visited CUHK

Meeting with Alumnus Norman Chan

5th Year Greater China Legal History Seminar Series 2019-20

Send Happiness And Reach Everyone

CUHK Entrepreneurship Competition 2019 - Five Finalists do battle

CUHK Entrepreneur Day 2019

Eighteenth Honorary Fellowship Conferment Ceremony

86th Congregation for the Conferment of Degrees

85th Congregation for the Conferment of Degrees

Distinguished Alumni-in-Residence Programme - Dorothy Yuen

Vice-Chancellor's Speech at Inauguration Ceremony for Undergraduates 2018

Inauguration Ceremony for Undergraduates 2018

Prof. Tuan: Taste of CUHK Mooncake

Festival of Love II

Festival of Love

World Cup Final in CUHK

Seventeenth Honorary Fellowship Conferment Ceremony (Full Version)

Seventeenth Honorary Fellowship Conferment Ceremony (Highlight Version)

CUHK Entrepreneur Competition 2018 - The Key to Win

CUHK Entrepreneur Day 2018

The Journey Home For Professor Rocky Tuan

Installation of Vice-Chancellor Professor Rocky Tuan (Full Version)

Installation of Vice-Chancellor Professor Rocky Tuan (Highlight Version)

End-of-Life Care Education

5 Things to Know Before Blood Donation

The Original Intention of a "Hong Kong Guy"

Fai Chun Writing to Celebrate Chinese New Year

CUHK Marathon Team 2018

The 8th Anniversary of the School of Biomedical Sciences cum Inauguration of the BSc in Biomedical Sciences Programme

Prof. Joseph Sung's Sharing on His Last Day as CUHK Vice-Chancellor

Thank you, Prof. Joseph Sung

84th Congregation for the Conferment of Degrees (Full Version)

84th Congregation for the Conferment of Degrees (Highlight Version)

School Bus Challenge

Master's Degree (2016-2017) Graduation Ceremony

Speech of the Vice-Chancellor in 83rd Congregation for the Conferment of Degrees

83rd Congregation for the Conferment of Degrees (Highlight version)

83rd Congregation for the Conferment of Degrees (Full version)

Greenest O’Camp Award Ceremony cum launch of ‘BYO GO!’ Campaign

CUHK 10K Night Challenge

CUHK Team Cheers on the Announcement of 2017 Physics Nobel Laureates

Dr Tong Shiu Sing and His Cat Talk on Loneliness

The liveliness and loneliness of Korean at Mid-Autumn Festival

Network of Ageing Well for All (NAWA) Summer Camp in CUHK

Joseph Sung Talks on Loneliness

Research Project: Ancient Chinese Gold Techniques

Golden Techniques: Art of the Chinese Goldsmiths

History of Gold: Masterpiece from Shaanxi

Conference Dinner Highlights - 2017 Asian Meeting of the Econometric Society

Sixteenth Honorary Fellowship Conferment Ceremony (Full Version)

Sixteenth Honorary Fellowship Conferment Ceremony (Highlight Version)

Gear Sports Up

Entrepreneurship: Durian to start with

Entrepreneurship: The Boss' Secret

‘GO!’ Green Awards Ceremony of the CUHK Green Office Programme

Pak Suet Sin Celebrates 90th Birthday

CUHK Marathon Team 2017

Music for CM Li and You ─ The Lantern Festival Concert (highlight version)

Music for CM Li and You ─ The Lantern Festival Concert (full version)

香港中文大學校友評議會──雞年賀歲 + 2017年籌款計劃「一人一利是」

Heralds of Spring: Celebrating the Year of the Rooster

Christmas Party with the Vice-Chancellor 2016

Foundation Stone Laying Ceremony of the Jockey Club Postgraduate Halls 2 & 3 (Full version)

Foundation Stone Laying Ceremony of the Jockey Club Postgraduate Halls 2 & 3 (Highlight version)

Ground Breaking Ceremony of The CUHK Medical Centre

82nd Congregation for the Conferment of Degrees (Highlight version)

82nd Congregation for the Conferment of Degrees (Full version)

Master's Degree (2015-2016) Graduation Ceremony

Speech of the Vice-Chancellor in 81st Congregation for the Conferment of Degrees

81st Congregation for the Conferment of Degrees (Highlight version)

81st Congregation for the Conferment of Degrees (Full version)

CUHK Faculty of Engineering Celebrates 25 Years of Excellence in Education and Innovation

Vice-Chancellor's Reception for New Staff 2016

Celebrate Mid-Autumn Festival with the Vice-Chancellor 2016

Inauguration Ceremony for Undergraduates 2016

Vice-Chancellor's Speech in Inauguration Ceremony for Undergraduates 2016

Celebrating Mid-Autumn Festival with the Elderly

2016 CUHK Summer Institute

"Chinese Art & Culture Month" Opening Ceremony

80th Congregation for the Conferment of Degrees (Highlight version)

Fifteenth Honorary Fellowship Conferment Ceremony (Highlight Version)

Fifteenth Honorary Fellowship Conferment Ceremony (Full Version)

CUHK Entrepreneur Day 2016

CUHK Marathon Team Award Ceremony 2016

CUHK Marathon Team 2016

Shaw College 30th Anniversary: Glass Bottle Recycling Challenge

Vice-Chancellor's Christmas Party with Champion Teams

79th Congregation for the Conferment of Degrees (Full version)

79th Congregation for the Conferment of Degrees (Highlight version)

CUHK United College Held the Kick-off Ceremony for its 60th Anniversary Activities

CUHK Alumni Homecoming 2015

Master's Degree (2014-2015) Graduation Ceremony

'The Young are the Hope of Our Future', an address by the Vice-Chancellor in 78th Congregation for the Conferment of Degrees

78th Congregation for the Conferment of Degrees (Full version)

78th Congregation for the Conferment of Degrees (Highlight version)

Universities Join Hands to Promote Academic Chinese

Run Drop

Korean Cultural Festival

School of Journalism and Communication Celebrates 50th Birthday

“Pearl River Estuary Challenge” — Sharing by the CUHK Rowing Team

“Pearl River Estuary Challenge” — Sharing by Sir David Akers-Jones

‘The Bei Shan Tang Legacy: Rubbings of Stone Engraving and Model Calligraphy’ Exhibition

Celebrate Mid-Autumn Festival with the Vice-Chancellor 2015

Vice-Chancellor's Reception for New Staff 2015

Vice-Chancellor's Speech in Inauguration Ceremony for Undergraduates 2015

Visiting the Elderly with CUHK Mooncake

Donation Ceremony for the establishment of the ‘Li Dak Sum Yip Yio Chin R&D Centre for Chinese Medicine’

The Art of CUHK 2015

Fourteenth Honorary Fellowship Conferment Ceremony (Highlight Version)

Fourteenth Honorary Fellowship Conferment Ceremony (Full Version)

Ceremony for the Presentation of the Diploma for the Degree of Doctor of Science, Honoris causa to Professor Zhou Ji, President of the Chinese Academy of Engineering (Full version)

Ceremony for the Presentation of the Diploma for the Degree of Doctor of Science, Honoris causa to Professor Zhou Ji, President of the Chinese Academy of Engineering (Highlight version)

Cocktail Reception with International, Mainland and Local Students

I·CARE Floral Festival 2015

CCOUC Ethnic Minority Health Project

Latin Fiesta@CUHK

CUHK Marathon Team Award Ceremony 2015 (Highlight Version)

CUHK Marathon Team Award Ceremony 2015 (Full Version)

Green Mini Movies Competition

Green Mini Movies Festival 2015 - Prize Presentation Ceremony

CUHK Spring Reception for Media

Vice-Chancellor's Spring Reception with Staff Association 2015

Valentine's Day at CWC - Tea Party with Prof. Charles Kao and Mrs. Gwen Kao

Fai Chun Writing on Campus

Jubilant Rams in Chinese Culture: Celebrating the Year of the Ram

CUHK Marathon Team 2015

Christmas Party with the Vice-Chancellor 2014

77th Congregation for the Conferment of Degrees (Highlight Version)

77th Congregation for the Conferment of Degrees (Full Version)

CUHK Alumni Homecoming 2014

Master's Degree (2013-2014) Graduation Ceremony

An address by the Vice-Chancellor in 76th Congregation for the Conferment of Degrees

76th Congregation for the Conferment of Degrees (Full Version)

76th Congregation for the Conferment of Degrees (Highlight Version)

Joint University Mass Dance 2014

Naming Ceremony of Li Wei Bo Building CUHK Shenzhen Research Institute (Full Version)

Naming Ceremony of Li Wei Bo Building CUHK Shenzhen Research Institute (Highlight Version)

CUHK International Festival

Vice-Chancellor's Reception for New Staff

Party Under the Full Moon (Highlight Version)

Party Under the Full Moon (Full Version)

CUHK Teaching Hospital Project and CUHK Jockey Club Institute of Ageing Donation Ceremony (Full Version)

CUHK Teaching Hospital Project and CUHK Jockey Club Institute of Ageing Donation Ceremony (Highlight Version)

World Cup Live at the University Mall

Developing Disaster Preparedness and Resilience in Rural China

Thirteenth Honorary Fellowship Conferment Ceremony (Highlight Version)

Thirteenth Honorary Fellowship Conferment Ceremony (Full Version)

CUHK Marathon Team Award Ceremony 2014 (Highlight Version)

CUHK Marathon Team Award Ceremony 2014 (Full Version)

Dinner Party with International, Mainland and Local Students (Full Version)

Dinner Party with International, Mainland and Local Students (Highlight Version)

CUHK Presents 2013 Long Service Awards

I·CARE Film Festival

CUHK Marathon Team 2014 (Highlight Version)

CUHK Marathon Team 2014

Vice-Chancellor’s Chinese New Year Media Reception

Christmas Party with Vice-Chancellor 2013

Jockey Club Museum of Climate Change Opening Ceremony (Full Version)

Jockey Club Museum of Climate Change Opening Ceremony (Highlight Version)

An address by Prof. Joseph Sung at the 50th Anniversary Banquet

50th Anniversary Banquet - Ceremony

An address by Dr.Vincent Cheng at the 50th Anniversary Banquet

An address by Mr. Charles Leung at the 50th Anniversary Banquet

50th Anniversary Banquet (Full Version)

50th Anniversary Banquet (Highlight Version)

The Magical Mall (Full version)

The Magical Mall (Highlight version)

2013 CUHK Business School Open House

75th Congregation for the Conferment of Degrees (Full version)

75th Congregation for the Conferment of Degrees (Highlight version)

Grand Opening of University Gallery (Full Version)

Grand Opening of University Gallery (Highlight Version)

Master's Degree (2012-2013) Graduation Ceremony

An address by the Vice-Chancellor in 74th Congregation for the Conferment of Degrees

74th Congregation for the Conferment of Degrees (Highlight version)

74th Congregation for the Conferment of Degrees (Full version)

CUHK celebrates Prof. Charles K. Kao’s 80th Birthday

Watoto Children’s Choir at S.H. Ho College

"CHINA UNEARTHED: Soaring Phoenix Rising Dragon" Exhibition Opening Ceremony

73rd Congregation for the Conferment of Degrees (Full Version)

73rd Congregation for the Conferment of Degrees (Highlight Version)

Vice-Chancellor’s Reception for New Staff (Full Version)

Vice-Chancellor’s Reception for New Staff (Highlight Version)

Induction Ceremony for Professor the Honourable Jao Tsung-I

Induction Ceremony for Professor the Honourable Jao Tsung-I as Associate Foreign Member of Académie des Inscriptions et Belles-Lettres, Institut de France (Highlight Version)

Magic Carpet: Moonlight Cinema

Celebrate Mid-Autumn Festival with the Vice-Chancellor (Full Version)

Celebrate Mid-Autumn Festival with the Vice-Chancellor (Highlight Version)

Faculty of Medicine, CUHK — Gerald Choa Memorial Lecture cum Dinner

VC's Welcome Speech at the Inauguration Ceremony for Undergraduates 2013

Twelfth Honorary Fellowship Conferment Ceremony (highlight version)

Twelfth Honorary Fellowship Conferment Ceremony (Full version)

CU50 • Care - Tree Planting Day

CUHK Golden Jubilee Wu Zhi Qiao

CUHK Golden Jubilee Marathon Team Award Ceremony (Full Version)

CUHK Golden Jubilee Marathon Team Award Ceremony (Highlight Version)

Naming Ceremony of the Lui Che Woo Clinical Sciences Building (Full Version)

Naming Ceremony of the Lui Che Woo Clinical Sciences Building (Highlight Version)

Green Office Programme (GO!) Phase 2 Launch Ceremony

CUHK 50th Anniversary Fair Kick-off Ceremony (Full Version)

CUHK 50th Anniversary Fair Kick-off Ceremony (Highlight Version)

SARS A Decade On: A Conference for the Health Professionals

Vice-Chancellor's Dinner Party with International, Mainland and Local Students (Highlight version)

Vice-Chancellor's Dinner Party with International, Mainland and Local Students (Full version)

The opening ceremony of the Environment Fair 2013

Grand Opening of CUHK Yasumoto International Academic Park (Highlight Version)

Grand Opening of CUHK Yasumoto International Academic Park (Full Version)

CUHK Golden Jubilee Team runs for SCHK Marathon

Vice-Chancellor’s Chinese New Year Media Reception

CUHK 50th Anniversary Kick-off Ceremony．Walkathon and Carnival (Full Version)

CUHK 50th Anniversary Kick-off Ceremony．Walkathon and Carnival (Highlight Version)

The Opening Ceremony of the ‘From the Treasure House: Jewels from the Library of The Chinese University of Hong Kong’ Exhibition

Vice-Chancellor's Christmas Party with Champion Teams of CUHK

72nd Congregation for the Conferment of Degrees (Highlight version)

72nd Congregation for the Conferment of Degrees (Full Version)

CUHK Alumni Homecoming 2012

"Embrace Our Culture. Empower Our Future." by Prof. Joseph Sung

Master's Degree (2011-2012) Graduation Ceremony

An address by the Vice-Chancellor in 71st Congregation

71st Congregation for the Conferment of Degrees (Full Version)

71st Congregation for the Conferment of Degrees (Highlight version)

Cheque Presentation Ceremony of Wu Jieh Yee Charitable Foundation cum Plaque Unveiling Ceremony for the Shiu-Ying Hu Herbarium (Full Version)

(Highlight Version) Cheque Presentation Ceremony of Wu Jieh Yee Charitable Foundation cum Plaque Unveiling Ceremony for the Shiu-Ying Hu Herbarium

(Highlight version) Celebrate Mid-Autumn Festival with the Vice-Chancellor

Celebrate Mid-Autumn Festival with the Vice-Chancellor (Full Version)

Vice-Chancellor’s Reception for New Staff

Inauguration Ceremony for Undergraduates 2012

VC's speech in Inauguration of Academic Year 2012-13

Grand Opening of the Lo Kwee-Seong Integrated Biomedical Sciences Building (Full Version)

(Highlight Version) Grand Opening of the Lo Kwee-Seong Integrated Biomedical Sciences Building

Shenzhou-9 Manned Spaceflight Mission Seminar (Full Version)

Shenzhou-9 Manned Spaceflight Mission Seminar (Highlight Version)

Naming Ceremony of Chen Shupeng Geoinformation Science Book Gallery

Eleventh Honorary Fellowship Conferment Ceremony

Green Office Programme (GO!) Launch Ceremony

Vice-Chancellor's Spring Reception with Staff Asociation

Vice Chancellor’s Chinese New Year Media Reception

VC's X'mas Party with CU Teams

VC's Speech in 69th Congregation

VC's Dinner Party with Students

Foundation Stone Laying Ceremony for C W Chu College

Opening Ceremony of Shenzhen Research Institute, CUHK

Naming Ceremony of Pommerenke Student Centre

Inaugural Symposium of Institute of Environment, Energy and Sustainability

Inauguration Ceremony of Leung Po Chuen Research Centre for Hong Kong History and Humanities

Celebrate Mid-Autumn Festival with the Vice-Chancellor

Inauguration Ceremony for Undergraduates 2011

Inauguration Ceremony of the CUHK – BGI Innovation Institute of Trans-omics

Naming Ceremony of the Run Run Shaw Science Building

Launch Ceremony of the Cross-strait Green University Consortium

Donation Presentation Ceremony in support of General Education Foundation Programme cum Opening Ceremony of Baldwin Cheng Research Centre for General Education

Candlelight Vigil for Victims of Japan Earthquake

Dick and Joe's Kitchen

Spring Festival Dinner Party

Media Spring Reception with Professor Joseph Sung, Vice-Chancellor and President

The Opening Ceremony of the Exhibition "The Lore of a Laureate: A Tribute to Charles Kao, Former CUHK Vice-Chancellor and Nobel Laureate"

Shenzhou-7 Space Mission Seminar

The Sun Hung Kai Properties Nobel Laureates Distinguished Lectures 2006 - Opening Ceremony