On this day in history, October 15th, we explore a diverse collection of events that shaped our world. We start in 1066 with Edgar the Ætheling's brief reign as King of England and travel through time, touching on pivotal moments like the Siege of Vienna in 1529 and the adoption of the Gregorian calendar in 1582. We'll look at technological advancements like the first human hot air balloon ascent in 1783, the launch of the "Graf Zeppelin" in 1928, and the groundbreaking discovery of the "Oh-My-God particle" in 1991. We also remember significant figures born on this day, including Virgil, Friedrich Nietzsche, and A.P.J. Abdul Kalam. Join us for a captivating journey through history, exploring the events and individuals that have left their mark on October 15th.