The Clermont steamboat by Robert Fulton made its maiden trip up the Hudson River.
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A tropical cyclone hurricane hit Galveston in Texas.
King Charles IX of France became an adult on his 13th birthday.
Asaph Hall discovered Mars' second moon, called Phobos.
Three Americans made the first successful Atlantic Ocean crossing by hot air balloon.
William B. Purvis patented the electric switch on railways that would shut off the electric supply after carriages pass the contact device.
