In 1909 on Arbor Day.
According to a Smithsonian Garden blogpost, titled "Celebrating Trees; Inspiring Arbor Day Stories", the first documented Arbor Day was organized in 1594 by the Spanish mayor in the village of Mondoñedo. According to the Arbor Day Foundation, the first Arbor Day in the US was held in Nebraska on April 10, 1872. This event happened after, J. Sterling Morton proposed a tree planting holiday at a meeting of the State Board of Agriculture. Arbor Day was officially named a state holiday in Nebraska in 1885, and was a celebrated day in most states by 1920. Sources: Arbor Day Foundation and Smithsonian Garden This question was answered by a librarian in training :)
The idea of Arbor Day started on January 4, 1872, when J. Sterling Morton, then a member of the Nebraska Board of Agriculture wanted people to plant trees. So, Arbor Day technically started in Nebraska.
Arbor Day is celebrated on the last Friday in April.
In 2011, Arbor Day is on Friday, April 29.
Arbor Day is celebrated on the last Friday in April.
Yes, Arbor Day is a proper noun, the name of a specific day.
Rocky Arbor State Park was created in 1932.
Arbor Day is the day where people plant trees for one another to live.
The first Arbor Day was held on April 10, 1872.
Earth Day April 22nd Arbor Day (varies by state) Earth Hour was on March 26th this year.
Arbor Day 2010 in the United States is on Friday 30th April.