Wikipedia:Selected anniversaries/December 1
December 1: Union Day in Romania (1918), World AIDS Day
- 1640 - John IV was declared King of Portugal, resulting in a war with Spain.
- 1822 - Pedro I was crowned the first Emperor of Brazil.
- 1955 - Rosa Parks refused to give her bus seat to a white man and was arrested for violating Montgomery, Alabama's racial segregation laws.
- 1990 - Channel Tunnel workers from the United Kingdom and France met 40 metres beneath the English Channel seabed, establishing the first ground connection between the island of Great Britain and the mainland of Europe since the last ice age.
Recent days: November 30 – November 29 – November 28