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July 25 is the 206th day of the year ... Spanish-born Scottish rock musician ... 1979 – Ahmed Tantawi, Egyptian politician and journalist [25] 1980 – Shawn ...
July 19, 1980: Summer Olympic Games open in Moscow [1] July 24, 1980: Republic of Vanuatu granted independence July 16, 1980: Former U.S. President Ford turns down offer to become U.S. vice president nominee. The following events happened in July 1980:
In Spanish, abbreviations of month names are usually three letters long, to avoid confusion between marzo (March) and mayo (May), and between junio (June) and julio (July). In Spain, the week runs from Monday to Sunday. The Spanish language also has an established convention for days of the week using one letter.
1980 was a leap year starting on Tuesday of the Gregorian calendar, the 1980th year of the Common Era (CE) and Anno Domini (AD) designations, the 980th year of the 2nd millennium, the 80th year of the 20th century, and the 1st year of the 1980s decade.
The Babylonians invented the actual [clarification needed] seven-day week in 600 BCE, with Emperor Constantine making the Day of the Sun (dies Solis, "Sunday") a legal holiday centuries later. [2] In the international standard ISO 8601, Monday is treated as the first day of the week, but in many countries it is counted as the second day of the ...
Labour Day: Día del Trabajador: 2 May: Madrid Day: Fiesta de la Comunidad de Madrid: 17 May: Galician Literature Day: Día de las Letras Gallegas: 30 May: Day of the Canary Islands: Día de Canarias: 31 May: Castilla-La Mancha Day: Día de Castilla-La Mancha: 8 June Feast of Corpus Christi: Corpus Christi 9 June: Regional Day: Día de la ...
For determination of the day of the week (1 January 2000, Saturday) the day of the month: 1 ~ 31 (1) the month: (6) the year: (0) the century mod 4 for the Gregorian calendar and mod 7 for the Julian calendar (0). adding 1+6+0+0=7. Dividing by 7 leaves a remainder of 0, so the day of the week is Saturday. The formula is w = (d + m + y + c) mod 7.
When the seven-day week came into use in Rome during the early imperial period, it did not immediately replace the older eight-day nundinal system. [38] The nundinal system had probably fallen out of use by the time Emperor Constantine adopted the seven-day week for official use in CE 321, making the Day of the Sun (dies Solis) a legal holiday ...