Land reform occurred during the "Ten Years of Spring" (1944–1954) under the governments of Juan José Arévalo and Jacobo Arbenz, after a popular revolution forced out dictator Jorge Ubico. The largest part of the reform was the law officially called Decree 900, which redistributed all uncultivated land from landholdings that were larger than . If the estates were between and in size, uncultivated land was expropriated only if less than two-thirds of it was in use. The law benefited 500,000 people, or one-sixth of the Guatemalan Population. Historians have called this reform as one of the most successful land reforms in history. However, the United Fruit Company felt threatened by the law and lobbied the United States government, which was a factor in the US-backed coup that deposed the Jacobo Arbenz in 1954. The majority of the reform was rolled back by the US supported military dictatorship that followed.