Wikipedia:Selected anniversaries/February 21

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 * 1437 – King James I of Scotland was murdered at Perth in a failed coup by his uncle and former ally Walter Stewart, Earl of Atholl.
 * 1828 – The inaugural issue of the Cherokee Phoenix, the first newspaper in a Native American language, was published.
 * 1866 – Lucy Hobbs Taylor (pictured) became the first woman to receive a doctorate from a dental college.
 * 1919 – Bavarian socialist Kurt Eisner, who had organized the German Revolution that overthrew the Wittelsbach monarchy and established Bavaria as a republic, was assassinated.
 * 1929 – In the first battle of the Warlord Rebellion in northeastern Shandong against the Nationalist government of China, a 24,000-strong rebel force led by Zhang Zongchang was defeated at Zhifu by 7,000 NRA troops.
 * 1958 – British artist Gerald Holtom unveiled a logo for the Campaign for Nuclear Disarmament that later became internationally recognised as the peace sign.
 * Born/died: | Ahmad ibn Ibrahim al-Ghazi |d|1543| Ambrose Dudley, 3rd Earl of Warwick |d|1590| Raimondo Montecuccoli |b|1609| Baruch Spinoza |d|1677| Elizabeth Willing Powel |b|1743| Goscombe John |b|1860| Mirra Alfassa |b|1878| Mary Edwards Walker |d|1919| Thelma Estrin |b|1924| Nina Simone |b|1933| Howard Florey |d|1968| Helen Hooven Santmyer |d|1986| Jeanne Martin Cissé |d|2017