World Amateur Radio Day – April 18

World Amateur Radio Day, held on April 18 each year, is celebrated worldwide by radio amateurs and their national associations which are organized as member-societies of the International Amateur Radio Union (IARU). It was on this day in 1925 that the IARU was formed in Paris. American Radio Relay League (ARRL) Co-Founder Hiram Percy Maxim was its first president.

This year’s theme: A Century of Connections: Celebrating 100 years of Amateur Radio Innovation, Community, and Advocacy

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