Baltimore and Philadelphia were linked up by telegraph.
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Sirhan Sirhan assassinated Robert F. Kennedy, the late President Kennedy's younger brother.
Registration of US men aged between 21 and 31 began for troops for WWI.
Isaac Newton was admitted as a student to Cambridge University’s Trinity College.
NASA's STS-40 became the first spaceflight with three women to be launched into space.
Serbia declared its independence from the State Union of Serbia and Montenegro.
