Wikipedia:Selected anniversaries/December 19
- 1961 - The Indian Army invaded the Portuguese colony of Goa.
- 1974 - An early personal computer, the Altair 8800, went on sale.
- 1984 - The Peoples Republic of China and the United Kingdom signed the Sino-British Joint Declaration, agreeing to transfer sovereignty of Hong Kong to the PRC in 1997.
- 1998 - The U.S. House of Representatives passed articles of impeachment against President Bill Clinton over the Lewinsky scandal.
Recent days: December 18 – December 17 – December 16