On this day, Feb. 10

1841 Upper Canada and Lower Canada were proclaimed united under an Act of Union passed by the British Parliament. 1933 The 10th Street Bridge in Pittsburgh was completed and opened to traffic.

1953 Pittsburgh native David J. McDonald, secretary-treasurer of the United Steel Workers since its inception in 1937, was elected, without opposition, second president of the 1.1 million-member union.

1968 U.S. figure skater Peggy Fleming, 19, won America’s only gold medal of the Winter Olympic Games in Grenoble, France, in the ladies’ singles event. Gabriele Seyfert of East Germany earned the silver medal and Hana Maskova of Czechoslovakia took the bronze.

1984 The Kroger Co. sold all of its 45 Pittsburgh-area stores. The 2,845 union employees who had been on strike since Jan. 19 would be out of jobs.

2005 Playwright Arthur Miller died in Roxbury, Conn., at age 89 on the 56th anniversary of the Broadway opening of his play “Death of a Salesman.”

Some items are from Stefan Lorant’s “Pittsburgh: The Story of an American City” (digital.library.pitt.edu/chronology).

— Compiled by Rick Nowlin Today’s birthdays: Actor Robert Wagner, 89. Singer Roberta Flack, 82. Olympic gold-medal swimmer Mark Spitz, 69. Walt Disney Co. chairman and chief executive Robert Iger, 68. World Golf Hall of Famer Greg Norman, 64. ABC News correspondent George Stephanopoulos, 58. Political commentator Glenn Beck, 55. Actress Laura Dern, 52. Writer-producer-director Vince Gilligan (TV: “Breaking Bad”), 52. Actor Jason Olive, 47. Actress Elizabeth Banks, 45. Reggaeton singer Don Omar, 41. Actress Makenzie Vega, 25. Actress Chloe Grace Moretz, 22. Actress Yara Shahidi, 19.

Thought for today: “Morality is moral only when it is voluntary.”

— Lincoln Steffens, American journalist (1866-1936)