In contemporary history, the third millennium is the current millennium in the Anno Domini or Common Era, under the Gregorian calendar. It began on 1 January 2001 (MMI) and will end on 31 December 3000 (MMM), spanning the 21st to 30th centuries.

See history, history by period, and periodization for different organizations of historical events. For earlier time periods, see Timeline of the Big Bang, Geologic time scale, Timeline of evolution, and Logarithmic timeline.

The 23rd century, defined in the calendar of Earth as being from 2201 until 2300, was a period of expansion for the United Federation of Planets, with Humans and other founding species, such as Vulcans, at the forefront of exploration.

Some people think the 22nd century will start January 1, 2100 and end December 31, 2199, with the 23rd century beginning on January 1, 2200.

The 23rd century BC was a century that lasted from the year 2300 BC to 2201 BC. 2334 BC – 2279 BC: (short chronology) Sargon of Akkad 's conquest of Mesopotamia. c. 2300 BC: Indus Valley civilisation (Harappan) flourishing in modern-day eastern Pakistan - western India. c. 2300 BC: Metals start to be used in Northern Europe.

The 23rd century is a century of the Gregorian calendar that will begin on January 1, 2201, and end on December 31, 2300. It is distinct from the 2200s century, which will begin on January 1...

2024年9月25日 · The 23rd century will be the century of the Anno Domini or Common Era which, in the Gregorian calendar, will begin on January 1, 2201, and end on December 31, 2300. July 27, 2204 Solar eclipse, (7 min 22 s), of saros 139.

The 23rd century d. C. (23rd century AD) or XXIII century e. c. (23rd century CE) is the third century of the 3rd millennium in the Gregorian calendar. It will start on January 1, 2201 and end on December 31, 2300.

The 23rd century was a century of Earth's calendar, ranging from the years 2201 to 2300 and comprised of decades from the 2200s to the 2290s.

2023年2月23日 · The 23rd century BC was a period from 2300 BC to 2201 BC. Events include the flourishing of the Indus Valley civilization, metalworking in Northern Europe, emergence of the Unetice culture, and the Six Dynasty of Egypt.