January 28 Holidays

Data Privacy Day was established by the Council of Europe in 2006 to mark January 28, 1981, when Convention 108 — the first international data protection treaty — was opened for signature. Lego Day marks January 28, 1958, when Ole Kirk Christiansen filed the patent for the interlocking Lego brick — whose eight-stud design can be combined in 915,103,765 ways. Christa McAuliffe Day marks January 28, 1986, when teacher-astronaut Christa McAuliffe died when Space Shuttle Challenger disintegrated 73 seconds after launch, killing all seven crew members. Clashing Clothes Day encourages wearing deliberately mismatched clothing — stripes with florals, competing patterns, colors that theoretically don’t go together — as a liberating act of anti-fashion self-expression.