maintenance sub-entity
21Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… …
22Privatisation of British Rail — The privatisation of British Rail was the result of the Railways Act 1993 introduced by John Major s Conservative government. The operations of the British Railways Board (BRB) were broken up and sold off. Some non core parts of the BRB s… …
23Petroleum in Nigeria — The extraction and drilling of petroleum in Nigeria is the largest industry and main generator of GDP in the West African nation which is also the continent s most populous. Since the British discovered oil in the Niger Delta in the late 1950s,… …
24Government contract — Contracting with the U.S. Government is based on many of the same principles as commercial contracting andcan be very profitable, but is sufficiently different from commercial contracting to require special care.Persons entering into commercial… …
25Wikipedia:Manual of Style — This guideline is a part of the English Wikipedia s Manual of Style. Use common sense in applying it; it will have occasional exceptions. Please ensure that any edits to this page reflect consensus. Shortcuts …
26Chiropractic — Intervention A chiropract …
27Communications protocol — For other senses of this word, see Protocol. A communications protocol is a system of digital message formats and rules for exchanging those messages in or between computing systems and in telecommunications. A protocol may have a formal… …
28Mangalore — For other uses, see Mangalore (disambiguation). Mangalore ಕುಡ್ಲ Kudla, Kodiyal   city   …
29Virus — This article is about the biological agent. For other uses, see Virus (disambiguation). For a generally accessible and less technical introduction to the topic, see Introduction to viruses. Viruses …
30Ecology — For other uses, see Ecology (disambiguation). Ecology …
