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TIL That there are no A and B batteries because they simply quit selling as they didn't fit into the growing consumer electronics business needs after World War I

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69DAW TIL: Radio station KUOW accidentally used an extensionless image for its logo on its stream. This caused Mazda infotainment systems to be permanently stuck on KUOW if it tuned in, because it didn't know what to do with an extensionless image, requiring a total replacement costing $1500
P1J4J TIL about Sikh Nation - the largest blood donation campaign run by Canadian Sikhs to commemorate the tragic loss of thousands of lives in India’s anti-Sikh genocide in 1984. It has saved more than 160,000 lives and spread to 27 communities across the country since it began in 1999.
NX5oN TIL “Every year, tourists who come to the province of León at this time are surprised to read signs in the bars encouraging the killing of Jews. You don't have to worry, it's normal.”
yVWZa TIL of Dietrich von Hülsen-Haeseler, the Chief of the German Military Cabinet who died after performing a ballerina dance in a pink tutu for the Kaiser and his guests. His death was covered up because of fears it would inflame a previous homosexuality scandal in the German military.
RQLQ TIL that 110 people once tied for second prize in the Powerball lottery. Officials suspected cheating but discovered that the winners had all used the “lucky numbers” off copies of the same fortune from fortune cookies.