This Day in History Class -

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Marguerite Perey born - October 19, 1909

On this day in 1909, French nuclear chemist and discoverer of francium Marguerite Perey was born. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

First commercial transistor radio announced - October 18, 1954

On this day in 1954, Texas Instruments announced the invention of the first commercial transistor radio, the Regency TR-1. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

London Beer Flood - October 17, 1814

On this day in 1814, a flood of beer burst out of a London brewery, killing eight people and injuring others. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

Palace of Westminster fire - October 16, 1834

On this day in 1834, the Palace of Westminster was destroyed in a fire. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers

Gregorian Calendar introduced - October 15, 1582

On this day in 1582, Pope Gregory XIII introduced the Gregorian calendar, which was created as a way to reform the Julian calendar. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers