Fibonacci Day is held on November 23. This event in the third decade of the month november is annual.
National Start Your Own Country Day in US on November 22 (is observed next on Friday, November 22nd, 2019. It has been observed annually on November 22nd since 1939);
Red Planet Day on November 28 (is commemorates the launch of the Spacecraft Mariner 4 on November 28,1964);