Today is Tuesday, April 3, the 93rd day of 2018. There are 272 days left in the year.

Today's Highlight in History:

On April 3, 1968, civil rights leader Martin Luther King Jr. delivered what turned out to be his final speech, telling a rally of striking sanitation workers in Memphis, Tennessee, that "I've been to the mountaintop" and "seen the Promised Land. I may not get there with you. But I want you to know tonight that we, as a people, will get to the Promised Land!" (About 20 hours later, King was felled by an assassin's bullet at the Lorraine Motel.)

On this date:

In 1776, George Washington received an honorary Doctor of Laws degree from Harvard College.

In 1860, the legendary Pony Express began carrying mail between St. Joseph, Missouri, and Sacramento, California. (The delivery system lasted only 18 months before giving way to the transcontinental telegraph.)

In 1882, outlaw Jesse James was shot to death in St. Joseph, Missouri, by Robert Ford, a member of James' gang.

In 1936, Bruno Hauptmann was electrocuted in Trenton, New Jersey, for the kidnap-murder of Charles Lindbergh Jr.

In 1942, during World War II, Japanese forces began their final assault on Bataan against American and Filipino troops who surrendered six days later; the capitulation was followed by the notorious Bataan Death March.

In 1946, Lt. Gen. Masaharu Homma, the Japanese commander held responsible for the Bataan Death March, was executed by firing squad outside Manila.

In 1948, President Harry S. Truman signed the Marshall Plan, designed to help European allies rebuild after World War II and resist communism.

In 1965, the United States launched the SNAP-10A nuclear power system into Earth orbit; it was the first nuclear reactor sent into space.

In 1978, at the Academy Awards, Woody Allen's "Annie Hall" was named best picture of 1977; its co-star, Diane Keaton, won best actress while Richard Dreyfuss was honored as best actor for "The Goodbye Girl."

In 1985, the landmark Hollywood Brown Derby restaurant closed after 56 years in business.

In 1996, Unabomber Theodore Kaczynski was arrested at his remote Montana cabin. An Air Force jetliner carrying Commerce Secretary Ron Brown and American business executives crashed in Croatia, killing all 35 people aboard.

In 2003, Atlantic magazine editor Michael Kelly, 46, became the first American journalist to be killed while covering the Iraq war.

Ten years ago:

NATO allies meeting in Bucharest, Romania, gave President George W. Bush strong support for a missile defense system in Europe and urged Moscow to drop its angry opposition to the program. Model Naomi Campbell was arrested at London Heathrow Airport after getting into an altercation with police during a dispute about lost luggage. (Campbell was later sentenced to 200 hours of community service and fined 2,300 pounds.) Ohio State defeated Massachusetts, 92-85, for the National Invitation Tournament title.

Five years ago:

The White House announced President Barack Obama would return 5 percent of his salary each month to the Treasury in a show of solidarity with federal workers smarting from government-wide spending cuts. Palestinian militants launched several rockets into southern Israel and Israeli aircraft struck targets in the Gaza Strip in the heaviest exchange of fire between the sides since a cease-fire ended a major flare-up the previous year. Oscar-winning screenwriter and award-winning novelist Ruth Prawer Jhabvala, 85, died in New York. 

One year ago:

A suicide bombing aboard a subway train in St. Petersburg, Russia, left 16 people dead and wounded more than 50; authorities identified the bomber as a 22-year old Kyrgyz-born Russian national. A divided Senate Judiciary Committee panel voted 11-9 along party lines to favorably recommend Supreme Court nominee Neil Gorsuch to the full Senate. The NHL announced it would not participate in the 2018 Winter Olympics in South Korea. North Carolina scored the last eight points for a 71-65 win over Gonzaga and an NCAA title.