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 "So teach us to number our days, so that we may apply our hearts unto wisdom."
– Bible Psalms 90:12


Game Info[]

The invention of the Calendar allows your civilization to predict the approximate time of change of seasons - an ability essential for advanced agriculture. Your civilization can now work advanced crops, such as Sugar and Wine, and use their many benefits.

This technology allows Workers to construct Plantations on many luxury resources, which are extremely important for 20xHappiness5.png Happiness and trade. (Note that many resources require you to have chopped a forest or jungle first, which requires other Technologies.) It also allows the construction of Stone Works in cities that have improved sources of Stone or Marble.

Civilopedia entry[]

A calendar is a method of keeping track of the days. In many ancient cultures calendars served both religious and practical purposes: certain days of the year were dedicated to the worship of certain deities, and it was very bad to offend the gods by failing to give them their due. More prosaically, of course, calendars allowed people to track the weather in an area, telling them when to plant crops, when to harvest, and so forth.

The Egyptians appear to have developed the first practical calendar, and this was appropriated and further refined by the Romans into the Julian calendar. The Gregorian calendar that is almost universally used today was based on the Julian calendar. Proclaimed in 1582 by Pope Gregory XIII, the Gregorian calendar more accurately defines a solar year, correcting a slight inaccuracy in the Julian. In the Julian calendar a solar year was 365 days and 6 hours in length, while in the Gregorian calendar the year was 12 minutes shorter, or 365 days, 5 hours and 48 minutes. This error accumulated over the centuries, and by Gregory's day the Julian calendar was 14 days out of sync with the seasons.

Civilization V Technologies [edit]
Ancient Agriculture Animal Husbandry Archery Bronze Working Calendar Masonry Mining Pottery Sailing The Wheel Trapping Writing
Classical Construction Currency Drama and Poetry GodsKings5 clear.png Engineering Horseback Riding Iron Working Mathematics Optics Philosophy
Medieval Chivalry Civil Service Compass Education Guilds GodsKings5 clear.png Machinery Metal Casting Physics Steel Theology
Renaissance Acoustics Architecture GodsKings5 clear.png Astronomy Banking Chemistry Economics Gunpowder Metallurgy Navigation Printing Press
Industrial Archaeology Biology Dynamite Electricity Fertilizer Industrialization GodsKings5 clear.png Military Science Rifling Scientific Theory Steam Power Telegraph1
Modern Ballistics GodsKings5 clear.png Combustion Electronics Flight Mass Media1 Plastics Radio Railroad Refrigeration Replaceable Parts
Atomic2 Atomic Theory Combined Arms GodsKings5 clear.png Computers Ecology Nuclear Fission Penicillin Radar Rocketry
Information2 Advanced Ballistics Future Tech Globalization Lasers Mobile Tactics GodsKings5 clear.png Nanotechnology Nuclear Fusion Particle Physics Robotics Satellites Stealth Telecommunications GodsKings5 clear.png The Internet BNW-only.png
1Vanilla only 2Atomic and Information eras are Future Era in Vanilla
GodsKings5 clear.png Valid only in the Gods & Kings expansion pack.
BNW-only.png Valid only in the Brave New World expansion pack.
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