Short answers, pulled from the story.
Cleveland was established on the 22nd of July 1796 by surveyors of the Connecticut Land Company. They named the settlement after their leader, General Moses Cleaveland, a veteran of the American Revolutionary War.
Disc jockey Alan Freed first popularized the term "rock and roll" while broadcasting at WJW radio in Cleveland. The city built a strong reputation as a breakout market for rock music from the 1950s onward, and the I. M. Pei-designed Rock and Roll Hall of Fame is located on Cleveland's Lake Erie waterfront at North Coast Harbor.
Industrial pollution had made the Cuyahoga River flammable, and it caught fire a total of 13 times beginning in 1868. The river fire of June 1969 spurred national attention and played a direct role in the passage of the Clean Water Act in 1972 and the National Environmental Policy Act later that year.
Carl B. Stokes was elected mayor of Cleveland in November 1967, becoming the first African American mayor of a major American city. He worked to restore the Cuyahoga River and the Carl B. Stokes U.S. Courthouse in Cleveland is named in his honor.
The Cleveland Clinic is the largest private employer in the state of Ohio, with a workforce of over 55,000. It is considered one of the best hospital systems in the world and is a central pillar of Cleveland's diversified 21st-century economy alongside universities, financial services, and biomedical research.
The Cleveland Cavaliers won the NBA Championship in 2016, coming back from a 3-1 deficit to defeat the Golden State Warriors. More than 1.3 million people attended the victory parade held on the 22nd of June 2016 in downtown Cleveland.