On this date

In 1925,

Tennessee Gov. Austin Peay signed the Butler Act, which prohibited teaching the Theory of Evolution in public schools. (Tennessee repealed the law in 1967.)

In 1935,

Persia officially changed its name to Iran.

In 1946,

the recently created United Nations Security Council set up temporary headquarters at Hunter College in the Bronx, New York.

In 1952,

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

In 1972,

the Supreme Court, in Dunn vs. Blumstein, ruled that states may not require at least a year’s residency for voting eligibility.

In 1990,

Namibia became an independent nation as the former colony marked the end of 75 years of South African rule.

In 2006,

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

Ten years ago:

Officials admitted that at least four State Department workers had pried into the supposedly secure passport files of Hillary Rodham Clinton, Barack Obama and John McCain, prompting Secretary of State Condoleezza Rice to personally apologize to the presidential contenders.

Five years ago:

On his second day in the Middle East, President Barack Obama insisted “peace is possible” as he prodded both Israelis and Palestinians to return to longstalled negotiations.

One year ago:

U.S. and British officials announced they were barring laptops and tablets from the cabins of some international flights because of long-standing concerns about terrorists targeting jetliners.