up to a certain period
31Devonian Period — Interval of geologic time from 417 to 354 million years ago; it was the fourth period of the Paleozoic Era. During the Devonian, a giant continent was situated in the Southern Hemisphere (see Gondwana), and other landmasses were located in the… …
32Cretaceous Period — Interval of geologic time from с 144 to 65 million years ago. During the Cretaceous the climate was warmer than today. In the seas, marine invertebrates flourished, and bony fishes evolved. On land, flowering plants arose, and insects, bees in… …
33Critical period — This article is about a critical period in an organism s or person s development. See also America s Critical Period. In general, a critical period is a limited time in which an event can occur, usually to result in some kind of transformation. A …
34Second Stadtholderless Period — The Second Stadtholderless Period or Era ( nl. Tweede Stadhouderloze Tijdperk) is the designation in Dutch historiography of the period between the death of stadtholder William III on March 19 [This is the date from the Gregorian calendar that… …
35History by period — Historical Eras, or classification of history, culture, and such into thematic groups involving time, so as to generate a history by period are intellectual constructs (categories) consisting of certain sets of common characteristics used by… …
36Treaty on Certain Maritime Arrangements in the Timor Sea — Officially known as the Treaty between Australia and the Democratic Republic of Timor Leste on Certain Maritime Arrangements in the Timor Sea (CMATS)[1], the treaty provides for the equal distribution of revenue derived from the disputed Greater… …
37Medieval Warm Period — Northern hemisphere temperature reconstructions for the past 2,000 years The Medieval Warm Period (MWP), Medieval Climate Optimum, or Medieval Climatic Anomaly was a time of warm climate in the North Atlantic region, that may also have been… …
38Asuka period — The Nihongo|Asuka period|飛鳥時代|asuka jidai, was a period in the history of Japan lasting from 538 to 710 (or 592 645), although its beginning could be said to overlap with the preceding Kofun period. The Yamato polity evolved much during the Asuka …
39Early modern period — Not to be confused with Early modern Europe. Waldseemüller map with joint sheets, 1507 Human history This box …
40Accounting period — An accounting period is a period with reference to which United Kingdom corporation tax is charged. [Section 12 of the Income and Corporation Taxes Act 1988] It helps dictate when tax is paid on income and gains. An accounting period begins… …
