ON THIS DAY

1672: Poland surrenders Ukraine to the Turks.

1767: The Mason-Dixon line, which divides America’s south from the north, is agreed upon.

1867: The US takes formal possession of Alaska from Russia.

1892: The first long-distance telephone line is opened between Chicago and New York.

1968: The US Olympic Committee suspends athletes Tommie Smith and John Carlos for giving a black-power salute as a protest in Mexico City.

1999: Former South African President Nelson Mandela begins his first visit to Israel.

2012: After a four-year campaign, Australia wins a seat as a non-permanent member of the United Nations Security Council.

Birthdays: Canadian politician Pierre Trudeau, (1919-2000); US rock pioneer Chuck Berry (19262017); Czech tennis player Martina Navratilova (1956-); US actor Zac Efron (1987-).