Cleveland was originally named for Moses Cleaveland, who surveyed the city in 1796 and laid the grid for Cleveland's Public Square. Tradition holds that the Cleveland Advertiser changed the spelling in the 1830s when it couldn't fit the extra A in its headline.
At the turn of the 20th century, Cleveland was home to John D. Rockefeller and a host of other wealthy industrialists. Euclid Avenue was known as "Millionaires' Row" for its concentration of mansions and lavish gardens.
The term "Rock and Roll" was first applied to music by Cleveland DJ Alan Freed in 1951. The Rock and Roll Hall of Fame now calls Cleveland home.
Cleveland's Cuyahoga River caught fire in 1969, and not for the first time. Cleveland's industries had been pouring untreated waste into the water for decades. The 1969 Cuyahoga River fire spurred passage of the 1972 Clean Water Act.