First Period is an American architecture style originating between approximately 1626 and 1725, used primarily by British colonists during the settlement...

The First Intermediate Period, described as a 'dark period' in ancient Egyptian history, spanned approximately 125 years, c. 2181–2055 BC, after the end...

The First Stadtholderless Period or Era (1650–72; Dutch: Eerste Stadhouderloze Tijdperk) is the period in the history of the Dutch Republic in which the...

of the Third Dynasty of Ur, and the subsequent Isin-Larsa period. The chronology of the first dynasty of Babylonia is debated; there is a Babylonian King...

Russification campaign was suspended and partially reversed in 1905–1907 during a period of civil unrest throughout the Russian Empire following Russian defeats...

A period on the periodic table is a row of chemical elements. All elements in a row have the same number of electron shells. Each next element in a period...

the Parthian period by Muslim historians may have been inherited from Sasanian propaganda. In the 11th century, Ṣāʿid al-Andalusī first applied the term...

proliferative and secretory phases. Day one of the menstrual cycle is the first day of the period, which lasts for about five days. Around day fourteen, an egg is...

of the first period is generally later in the developing world, and earlier in the developed world. The typical length of time between the first day of...

This is a list of timelines of events over the period of World War II. Timeline of events preceding World War II Timeline of World War II (1939) Timeline...