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31Native Americans in the United States — This article is about the indigenous people of the United States. For other indigenous people see Indigenous peoples by geographic regions Native Americans …
32Peterborough — This article is about the city in the United Kingdom. For other uses, see Peterborough (disambiguation). Peterborough   City and unitary authority   …
33History of Canada — This article is part of a series Timeline …
34Models of migration to the New World — There are several popular models of migration to the New World proposed by the anthropological community. The question of how, when and why humans first entered the Americas is of intense interest to anthropologists and has been a subject of… …
35Liquid rocket — A liquid rocket is a rocket with an engine that uses propellants in liquid form. Liquids are desirable because their reasonably high density allows the volume and hence the mass of the tanks to be relatively low, resulting in a high mass ratio.… …
36Luray Caverns — Luray Caverns, originally called Luray Cave, is a large, celebrated commercial cave just west of Luray, Virginia, USA, which has drawn many visitors since its discovery in 1878. The underground cavern system is generously adorned with speleothems …
37Drilling — For other uses, see Drilling (disambiguation). Drilling is a cutting process that uses a drill bit to cut or enlarge a hole in solid materials. The drill bit is a multipoint, end cutting tool. It cuts by applying pressure and rotation to the… …
38Ethel M. Dell — Ethel May Dell or Ethel Mary Dell (August 2 1881 – 19 September 1939) was an English writer of popular romance novels.OverviewEthel Dell s married name is recorded as Ethel Mary Savage. She was born in Streatham, a suburb of London. Her father… …
39AA-52 machine gun — Infobox Weapon|is ranged=yes caption= name=AA 52 type=Machine gun origin=flagcountry|France era= platform=Individual target=Personnel design date=1952 production date= service=1952 2008(france) used by=See Users wars=Indochina, Gulf War 1, Bosnia …
40PGM Hecate II — Infobox Weapon name=Hecate II caption=The PGM Hecate II origin=flag|France type=Anti materiel rifle is ranged=yes is UK= service=1993 present used by=See Users wars=Afghanistan designer=Gilles Payen design date= manufacturer=PGM Précision… …
