introduction period
41Tertiary Period — Interval of geologic time, 65–1. 8 million years ago. It constitutes the first of the two periods of the Cenozoic Era, the second being the Quaternary. The Tertiary has five subdivisions: (from oldest to youngest) the Paleocene, Eocene, Oligocene …
42Shōwa period — The nihongo|Shōwa period|昭和時代|Shōwa jidai|literally period of enlightened peace , or Shōwa era, is the period of Japanese history corresponding to the reign of Emperor Shōwa (Hirohito), from December 25, 1926 to January 7, 1989. In his coronation …
43Special Period — The Special Period in Peacetime ( es. Período especial en tiempo de paz) in Cuba was an extended period of economic crisis that began in 1991 after the collapse of the Soviet Union and, by extension, the Comecon. The economic depression of the… …
44Second 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… …
45The Fixed Period — (1882) is a satirical dystopian novel by Anthony Trollope.IntroductionIt was first published in six instalments in Blackwood s Magazine in 1881 82 and in book form in 1882. In the same year there also appeared U.S. and Tauchnitz editions of the… …
46Jurassic Period — Interval of geologic time, 206–144 million years ago, that is one of the three major divisions of the Mesozoic Era, preceded by the Triassic Period and followed by the Cretaceous. During the Jurassic, Pangea began to break up into the present day …
47Migration Period sword — Hilt of a Vendel period sword found at Valsgärde. Swords of the Migration Period (4th to 7th centuries AD) show a transition from the Roman era Spatha to the Viking sword types of the Early Middle Ages. The blade is normally smooth or shows a… …
48America's Critical Period — The term, Critical Period, coined by John Quincy Adams, refers to the 1780’s, a time right after the American Revolution where the future of the newly formed nation was in the balance. Large amounts of debt, high taxes, foreign affairs, domestic… …
49History of music in the biblical period — David Playing the Harp by Jan de Bray, 1670. Knowledge of the biblical period is mostly from literary references in the Bible and post biblical sources. Religion and music historian Herbert Lockyer, Jr. writes that music, both vocal and… …
50Helladic period — History of Greece This article is part of a series …
