On this day in History - September 9

1543 – Mary Stuart, at nine months old, is crowned "Queen of Scots" in the central Scottish town of Stirling.

1850 – California is admitted as the thirty-first U.S. state.

1969 – In Canada, the Official Languages Act comes into force, making French equal to English throughout the Federal government.

2015 – Elizabeth II becomes the longest reigning monarch of the United Kingdom.