When Julius Morton moved to Nebraska City in 1854, he faced a problem shared by many settlers in the territory: It was a treeless plain. That meant no trees for building materials, or for fuel. But Morton was one of the world's first conservationists, stating, "For prosperity, we ought to plant as many forests as we have exhausted and consumed". So he started planting trees, beginning with his own land. By 1860 Morton possessed a forest of more than 300 trees. A few years later, he had more than 1,000.
As the forest grew, so did Morton's influence in Nebraska. This was largely because Morton founded the Nebraska City News, the state's first newspaper, in which he frequently wrote editorials about the practical and aesthetic benefits of tree planting. He also organized the Nebraska State Gardening Society and served on the Nebraska State Board of Agriculture. While serving on the Board, Morton came up with an idea to spread his belief in tree planting statewide.
On January 4, 1872, Morton drafted a resolution that April 10 be designated day for the planting of trees in the State of Nebraska and urged people to go out and plant trees themselves. Morton called the special event Arbor Day as "arbor" is Latin for "tree". The state government agreed. And on April 10, 1872, the first unofficial Arbor Day was celebrated throughout Nebraska. Prizes were awarded to counties, cities, and individuals who planted the largest number of trees. That day, an astounding one million trees were planted in Nebraska—an average of more than six for every man, woman and child in the state. Since 1885, Nebraska has planted more than 700,000 acres of trees, earning it the nickname "the Tree Planters State".
Arbor Day became a legal, civic holiday in the state in 1885. It was held on April 22—Julius Morton's birthday. In addition to a parade in Nebraska City, Morton introduced what has since become a long-standing Arbor Day tradition: School children went outside and planted trees together.
In 1970, nearly a century after Arbor Day was first celebrated, President Richard Nixon declared the last Friday of every April to be observed as National Arbor Day. All 50 states recognize the April observance, although many hold an additional state Arbor Day in a month more suited to local tree planting.