The original Top Level domains
.com, .edu, .gov, .mil, .org, .net the intial set of domains as defined by RFC 920 in October 1984. The com, net, and org are now open for use for any purpose.
In September 1998, the Internet Corporation for Assigned Names and Numbers (ICANN) was created to take over the task of managing domain names. After a call for proposals (August 15, 2000) and a brief period of public consultation, ICANN announced on November 16, 2000, its selection of the following seven new TLDs: aero, biz, coop, info, museum, name, pro.ICANN added further TLDs, starting with a set of sponsored top-level domains.
ICANN approved asia, cat, jobs, mobi, museum, tel, travel and xxx.
New Gltds
Later ICANN Voted to introduce a whole raft of New Gtlds listed below.

New Gtlds and the massive Expansion of gTLDs
After Initial applications made in 2012 ICANN started to release these names in 2014. The domains listed are the ones available for registration today, without need a trademark. We currently update this list daily.
Criticism Following the vote to expand gTLDs, many trade associations and large companies, led by the Association of National Advertisers, formed the Coalition for Responsible Internet Domain Oversight. The coalition opposes the expansion of gTLDs, citing "its deeply flawed justification, excessive cost and harm to brand owners.". In a statement to the US Congress on December 9, 2011, National Restaurant Association vice president Scott DeFife stated, "Even beyond the financial toll the gTLD program will exact on millions of U.S. businesses, the Association believes that ICANN’s program will confuse consumers by spreading Internet searches across hundreds or even thousands of new top-level domains." br> Another opponent is Esther Dyson, the founding chairperson of ICANN, who wrote that the expansion "will create jobs [for lawyers, marketers and others] but little extra value."