Associated Press

On Aug. 28, 1845, the first issue of “Scientific American” magazine was published.

In 1898, pharmacist Caleb Bradham of New Bern, North Carolina changed the name of the carbonated beverage he had created five years earlier from “Brad’s Drink” to “Pepsi-Cola.”

In 1955, Emmett Till, a Black teenager from Chicago, was abducted from his uncle’s home in Money, Mississippi, by two white men after he had allegedly whistled at a white woman four days prior.

In 1957, U.S. Senator Strom Thurmond began what remains the longest speaking filibuster in Senate history (24 hours and 18 minutes) in an effort to stall the passage of the Civil Rights Act of 1957.

In 1963, during the March on Washington, the Rev. Martin Luther King Jr. delivered his “I Have a Dream” speech before an estimated 250,000 people.