Matching Pairs Periods of TimeOnline version Vocabulary related to periods of time. by Jorge Cardoza 1 It is a span of time defined for the purposes of chronology or historiography. 2 70s 3 It was a decade of the Gregorian calendar that began on January 1, 1980, and ended on December 31, 1989. 4 A period of 100 years. 5 It was a decade of the Gregorian calendar that began on January 1, 1970, and ended on December 31, 1979. 6 A period of human life, measured by years from birth, 7 All of the people born and living at about the same time, regarded collectively. 8 A period of ten years. 9 80s 10 A period of one thousand years. 11 A period of twenty-five years. A quarter-century Same as nineteen-seventies (1970s) The nineteen-seventies (1970s) A century A millenium A generation An era An age Same as nineteen-eighties (1980s) a decade The nineteen-eighties (1980s)