Introduction
The Nanjing Colloquium 2020 was held in December, 2020 amidst the pandemic of COVID-19. It is also the last colloquia being called as "Nanjing", because Nanjing University will part the way with Chinese Flagship Program after decade long cooperation.
This year, due to the severe pandemic and almost all the course work went online since the middle of March. The Flagship students still gave us 7 wonderful presentations to wrap up the memory.
Flashback: Nanjing Colloquium 2019
Archive 1: 2009-2013
Archive 2: 2014-2017
Archive 3: 2018