Conrad Hilton founded Hilton Hotels Corporation in 1946 after buying his first hotel in 1919 and building his first hotel (now the Plaza Hotel in El Paso) in 1930.
Hilton served in the U.S. Army during World War I. After the war, he returned to San Antonio for a while, but then moved to Texas to seek his fortune. He wanted to buy a bank, but ended up buying the Mobley Hotel in Cisco. Soon he added more hotels in the state.
Despite suffering a huge financial setback during the Great Depression, Hilton was able to build a hotel empire. He believed that each property should have its own style, not look like a part of a chain. He formed the Hilton Hotels Corporation in 1946. Properties in his hotel chain included the famed Waldorf-Astoria in New York City, which he leased in 1949. Around this time, Hilton began to expand his operations outside of the United States and renamed the company. The Hilton International Company became one of the largest hotel businesses in the world. The company expanded its operations into credit cards, car rentals, and other services. Hilton passed the reins of the company to his son Barron in 1960s, but he stayed on as the chairman of the board.
Source | www.biography.com