March 1st to March 7th
Friday, March 1st, 1968 - Country music legends Johnny Cash (36) and June Carter (38) are married in Franklin, Kentucky.
Saturday, March 2nd, 1968 - The United States Air Force unveils the world's largest airplane, the Lockhead C-5A Galaxy, in Marietta, Georgia.
Sunday, March 3rd, 1968 - An oil tanker carrying over 5 million gallons of oil splits in two in San Juan, Puerto Rico.
Monday, March 4th, 1968 - Martin Luther King, Jr. announces he will lead a Poor People's March on Washington in April.
Tuesday, March 5th, 1968 - Vietcong guerillas storm into the capital of South Vietnam's southernmost province and occupy a hospital for several hours.
Wednesday, March 6th, 1968 - The National Book Award for fiction is awarded to Thornton Wilder for his novel "The Eighth Day".
Thursday, March 7th, 1968 - The U.S., Great Britain, and the U.S.S.R. formally commit themselves to take immediate action through the UN Security Council to defend against nuclear attack any nation that renounces nuclear weapons.