Martyrs' Day is observed in Myanmar every July 19 as a public holiday and remembrance day. This day commemorates the assassination of eight leaders of the pre-independence interim Burmese government, including Prime Minister Aung Sun, who were killed during a cabinet meeting on July 19, 1947, by armed paramilitaries. The attack was orchestrated by a rival political group led by U Saw, who was later arrested and executed. Following Myanmar's independence in 1948, this date was officially designated as a public holiday. The day is marked with solemn remembrance ceremonies at Martyr's Mausoleum in Yangon, attended by high-ranking government officials. The first ceremony was officiated by Myoma U Than Kywe, highlighting the significance of this event in the nation's history.