Pasadena (A Chippewa Indian word for "Valley") is one of the major suburbs of Los Angeles. It was incorporated in June of 1886 in an attempt to shut down saloons in the area. In the early part of the 20th century it became a winter getaway for the rich and famous who built mansions along "Millionare's Row," Orange Grove Avenue. Among the structures built in the area are the famous Gamble House designed by Greene & Greene and Frank Lloyd Wright's La Minatura, his first textile block house and 2nd structure built in the Los Angeles area.
In 1940 Pasadena had the honor of being connected with Los Angeles via California's first freeway, the Arroyo Seco Parkway, a symbol of its importance to the area.
Today, Pasadena is a thriving city with its famed Tournament of Roses, CalTech (Originally called Throop Polytechincal Institute in 1925), and the restored 14 block area of Old Pasadena (It's on the Registry of Historic Places), a popular place to visit. It is also the birthplace of baseball legend Jackie Robinson (There's a park named after him). However, the Pasadena Unified School District has left the city with a somewhat stained reputation, they attempted to squeeze the Black community into the northwest corner of the city to avoid school integration years ago, and got in big trouble for it (Ironically, they were sued by a white family who thought this was unfair). Even worse, the attempt to isolate Black community has also left that particular area somewhat run-down.
By the way, Pasadena, Texas is named after this one, the result of claims that they look similar.