St. Louis summary

Written and fact-checked by The Editors of Encyclopaedia Britannica

Below is the article summary. For the full article, see St. Louis.

geodesic domeThe Climatron geodesic dome, Missouri Botanical Garden, St. Louis.

St. Louis, City (pop., 2020: 301,578), east-central Missouri, U.S. Located on the Mississippi River below its confluence with the Missouri River, it was founded by Auguste Chouteau in 1764 as a trading post and was named for King Louis IX of France. It became the crossroads of westward expansion for exploring parties, fur-trading expeditions, and pioneers traveling the Santa Fe and Oregon trails. Since the 19th-century steamboat era and the arrival of the railroads in the 1850s, it has been a major transportation hub. Its diversified industries include brewing, food processing, and the manufacture of aircraft. The largest city in the state, it is home to many educational institutions, including Washington University and St. Louis University. The emblem of the city is its Gateway Arch, designed by Eero Saarinen.

Mississippi River Summary

Mississippi River, the longest river of North America, draining with its major tributaries an area of approximately 1.2 million square miles (3.1 million square km), or about one-eighth of the entire continent. The Mississippi River lies entirely within the United States. Rising in Lake Itasca in

Olympic Games Summary

Olympic Games, athletic festival that originated in ancient Greece and was revived in the late 19th century. Before the 1970s the Games were officially limited to competitors with amateur status, but in the 1980s many events were opened to professional athletes. Currently, the Games are open to

Missouri Summary

Missouri, constituent state of the United States of America. To the north lies Iowa; across the Mississippi River to the east, Illinois, Kentucky, and Tennessee; to the south, Arkansas; and to the west, Oklahoma, Kansas, and Nebraska. With the exception of Tennessee, Missouri has more neighbouring

United States Summary

United States, country in North America, a federal republic of 50 states. Besides the 48 conterminous states that occupy the middle latitudes of the continent, the United States includes the state of Alaska, at the northwestern extreme of North America, and the island state of Hawaii, in the