Editing Top-level domain (section)

==History==
Originally, the top-level domain space was organized into three main groups: ''Countries'', ''Categories'', and ''Multiorganizations''.<ref name="rfc920_2011">{{cite journal |title=Domain Requirements |last1=Postel |first1=J. |last2=Reynolds |first2=J. |website=Request for Comments |publisher=Network Working Group | doi=10.17487/RFC0920 |doi-access=free |date=October 1984 |url=https://datatracker.ietf.org/doc/html/rfc920 |access-date=7 February 2011}}</ref> An additional ''temporary'' group consisted of only the initial DNS domain, [[.arpa]],<ref>{{cite journal |title=Domain Name System Implementation Schedule - Revised |last=Postel |first=J. |website=Request for Comments |publisher=Network Working Group |doi=10.17487/RFC0921 |date=October 1984 |url=https://datatracker.ietf.org/doc/html/rfc921 |access-date=7 February 2011 |quote=This memo is a policy statement on the implementation of the Domain Style Naming System in the Internet. This memo is an update of RFC-881, and RFC-897. This is an official policy statement of the IAB and the DARPA.|url-access=subscription }}</ref> and was intended for transitional purposes toward the stabilization of the domain name system.