Highlights: In 1943, President Franklin D. Roosevelt dedicated the Jefferson Memorial in Washington, D.C., on the 200th anniversary of the third American president’s birth.

In 1613, Pocahontas, daughter of Chief Powhatan, was captured by English Capt. Samuel Argall in Virginia and held in exchange for English prisoners and stolen weapons. (During a yearlong captivity, Pocahontas converted to Christianity and ultimately opted to stay with the English. )

In 1742, Handel’s “Messiah” had its first public performance in Dublin, Ireland.

In 1743, the third president of the United States, Thomas Jefferson, was born in Shadwell in the Virginia Colony.

In 1860, the Pony Express completed its inaugural run from St. Joseph, Mo. to Sacramento, Calif. in 10 days.

In 1861, at the start of the Civil War, Fort Sumter in South Carolina fell to Confederate forces.

In 1943, Radio Berlin announced the discovery of thousands of graves of massacred Polish officers in Russia’s Katyn Forest; the Nazis blamed the killings on the Soviets, who in turn blamed the Nazis. (Post-Soviet Russia has acknowledged the massacre was carried out by Josef Stalin’s much feared secret police.)

In 1964, Sidney Poitier became the first black performer in a leading role to win an Academy Award for “Lilies of the Field.” (Patricia Neal was named best actress for “Hud”; best picture went to “Tom Jones.”)

In 1970, Apollo 13, four-fifths of the way to the moon, was crippled when a tank containing liquid oxygen burst. (The astronauts managed to return safely.)

In 1992, the Great Chicago Flood took place as the city’s century-old tunnel system and adjacent basements filled with water from the Chicago River.

Ten years ago: U.S.-led forces announced the capture of Watban Ibrahim Hasan, a half-brother of and adviser to Saddam Hussein. After three weeks of captivity, seven U.S. POWs, including Army Spc. Shoshana Johnson, were released by Iraqi troops near Tikrit, Iraq.

Five years ago: World Bank President Robert Zoellick urged immediate action to deal with mounting food prices that had caused hunger and deadly violence in several countries. Trevor Immelman won the Masters, becoming the first South African to wear the green jacket in 30 years.

One year ago: President Barack Obama arrived in Cartagena, Colombia, to attend the Summit of the Americas; however, the visit was overshadowed by a scandal involving Secret Service agents and prostitutes. North Korea’s much-touted satellite launch ended in a nearly $1 billion failure.

It’s Saturday, April 13, the 103rd day of 2013. There are 262 days left in the year.

Movie director Stanley Donen is 89. Former Sen. Ben Nighthorse Campbell, R-Colo., is 80. Actor Paul Sorvino is 74. Poet Seamus Heaney is 74. Rock musician Jack Casady is 69. Singer Al Green is 67. Actor Ron Perlman is 63. Actor William Sadler is 63. Bandleader/rock musician Max Weinberg is 62. Bluegrass singer-musician Sam Bush is 61. Chess grandmaster Garry Kasparov is 50. Actress-comedian Caroline Rhea is 49. Rock musician Lisa Umbarger is 48. Rock musician Marc Ford is 47. Reggae singer Capleton is 46. Actor Ricky Schroder is 43. Actor-producer Glenn Howerton is 37.