Friday, 30 April, 2004 PlumbingSupply.US will celebrate Arbor Day In Pennsylvania, planting trees on the PlumbingSupply.US campus, Elkins Park, Pennsylvania. Arbor Day is a nationally-celebrated observance that encourages tree planting and care. Founded by J. Sterling Morton in Nebraska in 1872, National Arbor Day is celebrated each year on the last Friday in April. On January 4, 1872, Morton first proposed a tree-planting holiday to be called "Arbor Day" at a meeting of the State Board of Agriculture. The date was set for April 10, 1872. It was estimated that more than one million trees were planted in Nebraska on the first Arbor Day. Today the most common date for the state observances is the last Friday in April, and several U.S. presidents have proclaimed a national Arbor Day on that date. But a number of state Arbor Days are at other times to coincide with the best tree planting weather, from January and February in the south to May in the far north. Arbor Day has now spread beyond the United States and is observed in many countries of the world. PlumbingSupply.US encourages everyone to plant a tree, add value, save energy and grow the environment. "The forests are the flags of nature. They appeal to all and awaken inspiring universal feelings. Enter the forest and the boundaries of nations are forgotten. It may be that some time an immortal pine will be the flag of a united and peaceful world." - Enos A. Mills