Stock Photo - Hong Kong Artist Wai Ting Loretta Lau is presenting her Memory Eraser performance, in which she is inside a two-metre cube in a square in the city centre for 24 hours, to point to the importance of freedom and violation of democracy and human rights in China and anywhere else. Her performance started in the Vaclav Havel Square between the old and new buildings of the National Theatre at 20:00 on Thursday, October 10, 2019. The cube is covered with a white cloth and four projectors are showing images from historical events - the 1968 Prague Spring reform movement, the 1989 Tiananmen Square protests in Beijing, the 1989 Czechoslovak Velvet Revolution, and the 2019 Hong Kong protests. The artist is watching the images, trying to erase them with a white brush, same as the political regimes try to erase people's memories. She wants to show that the more the regime wants to cover the memories, the more its sins can be seen. (CTK Photo/Katerina Sulova)