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Written by Michael Friendly on 2025-01-15 at 03:29

[#]TodayinHistory #dataviz #Onthisday #OTD 📊

💀 Jan 14, 1742 Edmond Halley died in Greenwich, England 🏴󠁧󠁢󠁥󠁮󠁧󠁿

1701: Contour maps showing curves of equal value (an isogonic map, lines of equal magnetic declination for the world)

1715: Prediction of the path of a solar eclipse on May 3, 1715

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