On March 30, ...

... 1989, Beverley McLachlin was appointed to the Supreme Court of Canada. She has been Canada's Chief Justice for the last 7 years.
... 1867, U.S. Secretary of State William H. Seward concluded the so-called "Seward's Folly" -- an agreement by which the United States would buy Alaska from Russia for $7.2 million. Nearly 80 years later, Alaska became the 49th state.