1866 – The American Society for the Prevention of Cruelty to Animals (ASPCA) is founded in New York City by Henry Bergh.
1874 – The first Arbor Day is celebrated in Nebraska.
1866 – The American Society for the Prevention of Cruelty to Animals (ASPCA) is founded in New York City by Henry Bergh.
1874 – The first Arbor Day is celebrated in Nebraska.