This day in history.

In 1979, Conservative Party leader Margaret Thatcher was chosen to become Britain's first female prime minister as the Tories ousted the incumbent Labor government in parliamentary elections.

Today is Sunday, May 3, the 123rd day of 2015. There are 242 days left in the year.

Today's Highlight in History:

On May 3, 1765, the first school of medicine in the American colonies, the Medical School of the College of Philadelphia (now the Perelman School of Medicine at the University of Pennsylvania), was founded.

On this date:

In 1515, Pope Leo X promulgated the bull ''Inter sollicitudines'' allowing the Catholic Church to review and censor books.

In 1791, Poland adopted a national constitution.

In 1802, Washington D.C. was incorporated as a city.

In 1916, Irish nationalist Padraic Pearse and two others were executed by the British for their roles in the Easter Rising.

In 1945, during World War II, Allied forces recaptured Rangoon (Yangon) from the Japanese.

In 1952, the Kentucky Derby was televised nationally for the first time on CBS; the winner was Hill Gail.

In 1960, the Harvey Schmidt-Tom Jones musical ''The Fantasticks'' began a nearly 42-year run at New York's Sullivan Street Playhouse.

In 1975, America's oldest operational aircraft carrier, the USS Nimitz, was...