Fingerprinting was first officially used in the US in a St. Louis police department.
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John B. Meyenberg from St. Louis, Missouri, patented powdered milk.
The mail delivery system known as the Pony Express started.
Jesse James and the famous James-Younger Gang robbed the Missouri Pacific Railroad near Otterville, Missouri, US.
The first-ever western shootdown happened in Market Square, Springfield, Missouri, US.
Missouri entered the United States Union and became the 24th state.
