Associated Press

On March 21, 1685, composer Johann Sebastian Bach was born in Eisenach, Germany.

In 1952, the Moondog Coronation Ball, considered the first rock ’n’ roll concert, took place at Cleveland Arena.

In 1965, civil rights demonstrators led by the Rev. Martin Luther King Jr. began their third, successful march from Selma to Montgomery, Alabama.

In 1972, the Supreme Court, in Dunn v. Blumstein, ruled that states may not require a year’s residency for voting eligibility.

In 2006, the social media website Twitter was established with the sending of the first “tweet” by co-founder Jack Dorsey, who wrote: “just setting up my twttr.”

In 2019, President Donald Trump abruptly declared that the U.S. would recognize Israel’s sovereignty over the disputed Golan Heights, a major shift in American policy.