Pope Leo II became the bishop of Rome.
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Balloonist John Wise started the world's first airmail service by balloon from Lafayette to Crawfordsville, Indiana.
Solymon Merrick patented the wrench tool.
A tropical cyclone hurricane hit Galveston in Texas.
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.
