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  2. History of calendars - Wikipedia

    en.wikipedia.org/wiki/History_of_calendars

    The Vikram Samvat has been used by Hindus and Sikhs. One of several regional Hindu calendars in use on the Indian subcontinent, it is based on twelve synodic lunar months and 365 solar days. The lunar year begins with the new moon of the month of Chaitra. This day, known as Chaitra Sukhladi, is a restricted (optional) holiday in India.

  3. History of timekeeping devices - Wikipedia

    en.wikipedia.org/wiki/History_of_timekeeping_devices

    The first clock known to strike regularly on the hour, a clock with a verge and foliot mechanism, is recorded in Milan in 1336. [96] By 1341, clocks driven by weights were familiar enough to be able to be adapted for grain mills , [ 97 ] and by 1344 the clock in London's Old St Paul's Cathedral had been replaced by one with an escapement. [ 98 ]

  4. Tomorrow (time) - Wikipedia

    en.wikipedia.org/wiki/Tomorrow_(time)

    Tomorrow is a temporal construct of the relative future; [1] literally of the day after the current day , or figuratively of future periods or times. Tomorrow is usually considered just beyond the present and counter to yesterday. It is important in time perception because it is the first direction the arrow of time takes humans on Earth.

  5. Calendar era - Wikipedia

    en.wikipedia.org/wiki/Calendar_era

    Its first known use occurred in the 7th century AD, although its precursors were developed about AD 400. The Era of Martyrs or Era of Diocletian is reckoned from the beginning of the reign of Roman Emperor Diocletian; the first year of this era was 284/5. It was not the custom to use regnal years in Rome, but it was the custom in Roman Egypt ...

  6. History of statistics - Wikipedia

    en.wikipedia.org/wiki/History_of_statistics

    Early empires often collated censuses of the population or recorded the trade in various commodities. The Han dynasty and the Roman Empire were some of the first states to extensively gather data on the size of the empire's population, geographical area and wealth. The use of statistical methods dates back to at least the 5th century BCE.

  7. Timeline of time measurement inventions - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_time...

    Sometimes inventions are invented by several inventors around the same time, or may be invented in an impractical form many years before another inventor improves the invention into a more practical form. Where there is ambiguity, the date of the first known working version of the invention is used here.

  8. When pigs fly - Wikipedia

    en.wikipedia.org/wiki/When_pigs_fly

    is identical with the English saying, although the older proverb "Wenn Schweine Flügel hätten, wäre alles möglich" ("if pigs had wings, everything would be possible") is in more common use. [6] [better source needed] In Finnish, the expression "kun lehmät lentävät" (when cows fly) is used because of its alliteration.

  9. Common Era - Wikipedia

    en.wikipedia.org/wiki/Common_Era

    The first use of the phrase "before the common era" may be that in a 1770 work that also uses common era and vulgar era as synonyms, in a translation of a book originally written in German. [29] The 1797 edition of the Encyclopædia Britannica uses the terms vulgar era and common era synonymously.