National Arbor Day is celebrated on the last Friday in April, with its origins in Nebraska, where it was proposed by journalist Julius Sterling Morton to encourage tree planting. The day aims to transform bare lands into lush forests and promote a greener world for future generations. Typical customs include planting trees, either in personal yards or through donations to tree planting organizations, as well as learning about the benefits of trees, such as their ability to provide oxygen, store carbon, and boost wildlife habitats. Visitors can also honor Morton by viewing his statue in Washington, DC. National Arbor Day has evolved into a significant event that emphasizes environmental conservation and the importance of trees in the ecosystem.