c. 2874

**BC**: The 365-day**calendar**year was installed in ancient Egypt, with fixed lunar months of 30 days + 5 epagomenal days. 2863**BC**: Egyptian 2nd Dynasty Prince Raneb born around this year in history. 2860**BC**: Saqqara Tomb A construction started. 2852**BC**: The beginning of the period of the Three Sovereigns and Five Emperors in China.- 2890s
**BC**, 2880s**BC**, 2870s**BC**, 2860s**BC**, 2850s**BC**, 2840s**BC**, 2830s**BC**, 2820s**BC**, 2810s**BC**, 2800s**BC** - 3rd millennium
**BC**

- 30th
**century BC**,**29th century BC**, 28th**century BC** - 30th
**century BC**,**29th century BC**, 28th**century BC**

- 2890s
The 365-day

**calendar**year was started in ancient Egypt, with fixed lunar months of 30 days + 5 epagomenal days. [1] 2852**BC**: The beginning of the period of the Three August Ones and Five Emperors in China. 2832**BC**: Estimated germination of the Methuselah Tree, the oldest known living organism. 2807**BC**: Possible date for an asteroid or comet ...- 30th
**century BC**,**29th century BC**, 28th**century BC** - 3rd millennium
**BC**

- 30th
**century BC**,**29th century BC**, 28th**century BC** - 30th
**century BC**,**29th century BC**, 28th**century BC**

- 30th
**Category:29th-century BC**establishments. ←**29th**-**century****BC**establishments →. This category is for organizations, places, companies, or other things founded or established in the**29th****century****BC**. The**29th****century****BC**is the time period from the year 2900**BC**to 2801**BC**.The

**29th century**was defined in the**calendar**of Earth as being from 2801 until 2900. The Federation timeships Aeon and USS Relativity operate in this timeframe. (VOY: "Future's End, Part II", "Relativity") The Na'kuhl, a faction in the Temporal Cold War opposed to the Temporal Accord, escape from the Temporal War by using one-way stealth time travel to go to an Earth in the early 1940s in an ...- 24 min

- Events
- Significant Persons
- Births
- Inventions, Discoveries, Introductions

2100 BC — Beginning of the Xia Dynasty, the first dynasty and government system in China.c. 2100–2050 BC — Nanna Ziggurat, Ur (modern Muqaiyir, Iraq) is built.2091 BC — Beginning of the mythological Patriarchal Ageis traditionally set in this year.2080 BC — Ninth Dynasty wars in Egypt.Ur-Nammu, 3rd dynasty**of**UrShulgi**of**UrimAccording to Hindu tradition, lifetime**of**Rama, the 7th avatar**of**VishnuShelah, son of Arpachshad, (2067–1634 BC) according to the Hebrew CalendarEber, son of Shelah, (2037–1573 BC) according to the Hebrew CalendarPeleg, son of Eber, (2003–1764 BC) according to the Hebrew Calendar2100 BC — Earliest extant law code in Mesopotamia, the Code of Ur-Nammu2037 BC — Emperor Shen Nong makes first (perhaps mythical) teadrink by boiling fresh leavesMay 26, 2018 · Part of. 3rd millennium

**BC**. Point in time. 30th**century****BC**(statement with Gregorian date earlier than 1584) Follows. 31st**century****BC**. Followed by.**29th****century****BC**. Authority control.4th millennium

**BC**. Centuries: 39th**century****BC**· 38th**century****BC**· 37th**century****BC**. Decades: 3790s**BC**3780s**BC**3770s**BC**3760s**BC**3750s**BC**. 3740s**BC**3730s**BC**3720s**BC**3710s**BC**3700s**BC**. Categories: Births – Deaths. Establishments – Disestablishments.