It was around Christmas 1851 when a farmer in the US state of New York's Catskill Mountains, Mark Carr, began a journey with two oxen drawn sleds toward New York City with a crop of Christmas trees in tow. When he arrived in New York the first Christmas tree market was born, from which he sold all the trees. Though Christmas trees have been sold commercially in the United States since Carr's 1851 journey from the Catskills, the first American Christmas tree farm was not established until about 50 years later. Until then, most U.S. Christmas trees were entirely harvested from forests. In the 21st century, worldwide, 98 percent of all live Christmas trees sold are grown on Christmas tree farms.