Event:
Colorado's recreational marijuana stores open for business; voters approved the landmark law to legalize the sale of marijuana in 2012
More Notable Events on January 1:
1994 North American Free Trade Agreement (NAFTA) goes into effect
1985 VH-1 made its broadcasting debut
1901 Commonwealth of Australia established
1892 Ellis Island becomes reception center for new immigrants
1863 Emancipation Proclamation issued by Abraham Lincoln
