A federal law prohibits racial discrimination in voting, protecting the voting rights of African Americans.
A sustained US aerial bombing campaign against North Vietnam.
Two battalions of US Marines land at Đà Nẵng, the first American ground combat units deployed to Vietnam.
The first major battle between US Army forces and the North Vietnamese army, fought in the Central Highlands.
President Lyndon B. Johnson signs the Civil Rights Act, outlawing discrimination based on race, color, religion, sex or national origin.
A clash between USS Maddox and North Vietnamese torpedo boats leads Congress to pass the Gulf of Tonkin Resolution, enabling US escalation.
A smaller Viet Cong force repels an attack by South Vietnamese troops with US advisers near Mỹ Tho.