The Clermont steamboat by Robert Fulton made its maiden trip up the Hudson River.
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William B. Purvis patented the electric switch on railways that would shut off the electric supply after carriages pass the contact device.
Pope Leo II became the bishop of Rome.
King Charles IX of France became an adult on his 13th birthday.
Three Americans made the first successful Atlantic Ocean crossing by hot air balloon.
American swimmer Michael Phelps became the first person to win eight gold medals at one Olympic Games.
