Edgar Rice Burroughs (1875-1950), an American author and creator of expansive fictional universes, passed away on March 19, 1950 in Encino, California. His work included the "Tarzan" series and the Mars world novels, the most famous of which is A Princess of Mars. Edgar was born in Chicago, and he had an ordinary upbringing. He attended Harvard military school, where he learned to be an advanced cavalryman. After graduating, he held a variety of jobs, including a clerk in his father's business. In 1907, Edgar married his first wife, Emma Hulbert. Edgar began writing science fiction in 1910, and his first series of stories featuring the character of John Carter of Mars was published in 1912. He wrote prolifically, though initially to considerable financial distress. He achieved his greatest success with the Tarzan series, which began in 1912 and was made into several feature films. Burroughs original characters populated a variety of other series, and he published nearly a hundred novels in all. Edgar Rice Burroughs wrote in a style of adventure fiction that was widely popular during his time. He bridged the gap between science fiction and the physique of pulp magazines, helping to create a genre that would later be known as 'space opera.' His work is celebrated for creating an imaginative world that transcended the limitations of space and time.