Short answers, pulled from the story.
Walt and Roy Disney signed a contract on the 16th of October 1923 in Kansas City to establish Disney Brothers Cartoon Studio. This agreement followed the bankruptcy of their previous studio, Laugh-O-Gram.
Universal Pictures distributor Charles Mintz stole the rights to Oswald the Lucky Rabbit and hired four animators away from the Disney brothers in 1927. Only Ub Iwerks stayed with them, which forced Walt to create a new character named Mickey Mouse.
Snow White premiered on the 12th of December 1937 and grossed $8 million in its first year alone. The film cost ten times its original budget but became a massive financial success despite internal turmoil at the studio.
Walt Disney acquired 160 acres of orange groves in Anaheim for $6,200 per acre after realizing the original Burbank site was too small. Construction began in July 1954 and the park opened on the 17th of July 1955.
In 2019, Disney acquired 21st Century Fox assets for $71 billion, the largest acquisition in company history. This deal gave them 20th Century Fox, National Geographic Partners, and Hotstar streaming service.