Knowledge Spectra

1980: MGM Grand Hotel and Casino Fire On November 21, 1980, a devastating fire broke out at the MGM Grand Hotel and Casino in Las Vegas, resulting in the deaths…

1974: Birmingham Pub Bombings The Birmingham pub bombings occurred on November 21, 1974, a tragic terrorist attack in Birmingham, England. Two pubs were targeted, resulting in the death of 21…

1620: Signing of the Mayflower Compact On November 21, 1620, the Mayflower Compact was signed by 41 male passengers aboard the Mayflower, anchored off Massachusetts. This document holds historical significance…

1941: Debut of Tweety Bird Tweety Bird, an iconic cartoon character, made its debut on November 21, 1941, in the animated short film "A Tale of Two Kitties." Created by…

1998: Launch of the ISS's First Module, Zarya On November 20, 1998, a monumental step in space exploration was taken with the launch of Zarya, the first module of the…

1820: Attack on the Whaleship Essex The whaleship Essex was famously attacked and sunk by a sperm whale on November 20, 1820, in the Pacific Ocean. This dramatic event is…

1985: Release of Windows 1.0 Windows 1.0, the first version of the now ubiquitous Microsoft Windows operating system, was released on November 20, 1985. This graphical interface for personal computers…

1923: Patenting of the Traffic Signal On November 20, 1923, Garrett Morgan, an African American inventor, patented a key safety device: the traffic signal. His invention significantly improved road safety…

1917: The Battle of Cambrai The Battle of Cambrai, a significant military engagement in World War I, commenced on November 20, 1917. This battle is particularly notable for the first…

1928: Release of Steamboat Willie "Steamboat Willie," the first fully synchronized sound cartoon, was released on November 18, 1928. This animated short is notable for introducing Mickey Mouse to the…