As of December 20, 2013, about 33% of US states have legalized same-sex marriage.
The reasons appears to be cultural, political and religious.
Connecticut did on November 12, 2008. See related question below for a list of other states that legalized same-sex marriage afterwards.
the loving v. virginia decision. :) the actual question was supposed to be "which of the following legalized marriage in the entire united states between men and women of different races?"
Here is a list of US states ranked by per capita income, showing which have legalized same-sex marriage.Washington, DC - LEGALConnecticut - LEGALMaryland - LEGALNew Jersey - LEGALMassachusetts - LEGALVirginiaNew Hampshire - LEGALAlaskaNew York - LEGALColoradoWashington - LEGALMinnesota - LEGALRhode Island - LEGALDelaware - LEGALCalifornia - LEGALIllinois - LEGALHawaii - LEGALWyomingVermont - LEGALNorth DakotaPennsylvania - LEGALWisconsin - LEGALNevadaKansasOregon - LEGALIowa - LEGALNebraskaMaine - LEGALFloridaOhioTexasArizonaSouth DakotaMichiganMissouriGeorgiaNorth CarolinaMontanaIndianaTennesseeLouisianaOklahomaSouth CarolinaUtahNew Mexico - LEGALAlabamaKentuckyIdahoWest VirginiaArkansasMississippiAs you can see, most of the highest income states have legalized same-sex marriage and almost all of the lower income states have banned it. The poorest state that has legalized same-sex marriage is New Mexico. The richest state that has not legalized same-sex marriage is Virginia.
If by "illegal" you mean "against the law," then none. There is no state in the US where same-sex marriage is considered a crime. In fact, in most US states, same-sex marriage is legally recognized. (See related questions below: "What US states have legalized same-sex marriage" and "What US states have banned same-sex marriage.")
In the United States, each state has its own individual marriage laws and same-sex marriage is legalized state by state. In this respect, the US is similar to Mexico and Canada. However, in most of the world, same-sex marriage is legalized throughout an entire country, all at once, since political subdivisions do not have their own marriage laws.
All remaining U.S. states and territories are now close to legalizing same-sex marriage by judicial action. This is expected to happen nationwide before July 1, 2015.
Yes it should. Everyone deserves the right to marriage, to love, and to express their love and twine their lives together. If you have to take discrimination to a whole new level and ban same sex marriages, then society is going nowhere. Marriage is for everyone, leave religion out of it.
These US states have legalized same-sex marriage:Massachusetts - May 17, 2004Connecticut - October 10, 2008Iowa - April 27, 2009Vermont - September 1, 2009New Hampshire - January 1, 2010Washington D.C. - March 3, 2010New York - July 24, 2011Washington (state) - December 6, 2012Maine - December 29, 2012Maryland - January 1, 2013[Same-sex marriage was previously legal in California, but is no longer permitted pending a decision by the United States Supreme Court.]These US states have legalized civil unions:New Jersey (February 19, 2007);Illinois (June 1, 2011);Rhode Island (July 1, 2011);Delaware (January 1, 2012); and,Hawaii (January 1, 2012).[Some states that legalized civil unions later legalized same-sex marriage and abandoned civil unions.]
Yes. Such marriages are perfectly legal in any state that has legalized same-sex marriage. There is no citizenship requirement or screening for marriage in the United States.
the loving v. Virginia decision. :) the actual question was supposed to be "which of the following legalized marriage in the entire united states between men and women of different races?"