The Calendar

Thursday 30 December 2027

What the atlas records for this date, across the traditions it covers.

The Day Before Today The Day After All Of December 2027

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The atlas records no observance on this date. That is not the same as nothing being observed: many of its holidays follow calendars whose rules have not been written down here yet.

This Week In Technology and Engineering History

1 JanuaryAerosol Spray, patented 1927

1 JanuaryAileron, patented 1868

1 JanuaryAir Fryer, patented 2010

1 JanuaryAltimeter, patented 1772

1 JanuaryArchimedes' Screw, patented 1991

1 JanuaryBall Bearing, patented 1794

1 JanuaryBessemer Converter, patented 1856

1 JanuaryCash Register, patented 1879

1 JanuaryCircuit Breaker, patented 1879

1 JanuaryCompass, patented 1088

1 JanuaryContact Lens, patented 1888

1 JanuaryDishwasher, patented 1850

1 JanuaryEscapement, patented 1277

1 JanuaryFlush Toilet, patented 1777

1 JanuaryGyroscope, patented 1852

1 JanuaryHydraulic Press, patented 1795

1 JanuaryLighter, patented 1903

1 JanuaryLoudspeaker, patented 1876

1 JanuaryMovable Type Printing, patented 1041

1 JanuaryNail, patented 1795

1 JanuaryPendulum Clock, patented 1657

1 JanuaryPeriscope, patented 1947

1 JanuaryPhotocopier, patented 1938

1 JanuaryPower Loom, patented 1785

1 JanuaryReaper, patented 1834

1 JanuarySeed Drill, patented 1566

1 JanuarySpeedometer, patented 1888

1 JanuaryThe Analytical Engine, patented 1837

1 JanuaryThe Dialysis Machine, patented 1943

1 JanuaryThe Electric Motor, patented 1837

1 JanuaryThe Internal Combustion Engine, patented 1876

1 JanuaryThe Jacquard Loom, patented 1804

1 JanuaryThe Lithium-Ion Battery, patented 1987

1 JanuaryThe Magnetic Compass, patented 1088

1 JanuaryThe Mechanical Clock, patented 1275

1 JanuaryThe Printing Press, patented 1440

1 JanuaryThe World Wide Web, patented 1991

1 JanuaryVelcro, patented 1955

1 JanuaryVending Machine, patented 1867

2 JanuaryLillian Gilbreth, died 1972

3 JanuaryBlockchain, patented 2009

4 JanuaryJohn H. Hall, born 1781

5 JanuaryErnest Malinowski, born 1818

5 JanuaryThe Steam Engine, patented 1769

30 DecemberWilliam Heerlein Lindley, died 1917

30 DecemberYvonne Brill, born 1924

31 DecemberAlexander Hrennikoff, died 1984

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Dates for the Hebrew and Islamic calendars are the tabular reckoning, which is what a printed calendar prints. Communities that begin a month on a sighted crescent may differ by a day, and differ from one another by place.

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Thursday 30 December 2027

This Week In Technology and Engineering History