The document lists several notable events and people associated with March 15th, including the founding of the American Legion in 1919, the patenting of the escalator in 1892, Andrew Jackson's birth in 1767, Lady Augusta Gregory's birth in 1852, Christopher Columbus returning to Spain after his voyage in 1493, Maine becoming a state in 1820, and Julius Caesar being stabbed to death in 44 BC. All of these events are noted as happening on the author's birthday.