Introduction to the prologue hall of the memorial hall: The main exhibition in the prologue hall of the memorial hall is the historical background and family situation of Zhang Taiyan's life. Quietly lying in the exhibition hall are cultural relics such as the famous five-color flag from the Revolution of 1911, Zhang Taiyan’s wedding invitation, and letters to his wife and daughter after his marriage, explaining the background of Zhang Taiyan’s life and battles.