• Looking up at the Gateway Arch


    National Expansion Memorial Missouri

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  • Pedestrian Access to the Gateway Arch From Downtown

    Pedestrian traffic on the Chestnut bridge will be closed as of today Monday, March 31, 2014. This will leave the Pine St. bridge as the Arch grounds point of entry to and from the city. The new Walnut St. bridge will open next Friday to foot traffic.

Nineteenth Century Timeline

The Museum of Westward Expansion charts the entire history of the 19th century American West, from the Louisiana Purchase to the closing of the frontier in 1890.

Click on a decade in the list below or at the bottom of each decade page to learn about the major events which shaped this incredible period, an era of major technological improvements, mass migrations, bitter conflicts, and epic exploration.

A broader timeline, with graphics, can also be viewed on the Lewis and Clark website, The Lewis and Clark Journey of Discovery.


Did You Know?

Cast iron fence outside the Old Courthouse, part of the Jefferson National Expansion Memorial

During the 19th Century St. Louis was the premier ironwork city. After the great fire, many of its buildings were made using iron framework topped off by beautiful iron ornamentation. Jefferson National Expansion Memorial showcases St. Louis architecture in the Old Courthouse. More...