The Clermont steamboat by Robert Fulton made its maiden trip up the Hudson River.
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Solymon Merrick patented the wrench tool.
Younes Abouyaaqoub drove a van into pedestrians on La Rambla in Barcelona, Spain, killing 14 people and injuring at least 130 others.
William B. Purvis patented the electric switch on railways that would shut off the electric supply after carriages pass the contact device.
Charles Reed Bishop founded First Hawaiian Bank and opened its first branch in Honolulu.
Pope Leo II became the bishop of Rome.
