Yes. As of November 19, 2014, 35 US states recognize same-sex marriages and only 15 US states do not.
Generally, yes. However, the US does not recognize polygamy, and most states do not recognize same sex marriage.
Yes. All US states recognize all marriages performed in other states.
Arkansas does not recognize common law marriages
Of course! It is a requirement of the US Constitution, that states recognize the actions of the other states. Marriage and divorce are key ones. One important exception is same-sex marriages. Ohio does not recognize same-sex marriages performed out-of-state.
Yes, the U.S. recognizes marriages elsewhere when performed by that country's ligitimate person. I took a class in Domestic Law at Jones School of Law, and that specific question was discussed. Cathy Williams
Marriages are recognized throughout the US. If it is legal in Arkansas, it will be legal in Mississippi.
No. The US Federal Government does not recognize civil unions. It recognizes marriages, including same-sex marriages.
Yes. Most countries recognize each other's legal marriages.
No. Although the United States does generally recognize marriages performed in Mexico, the federal government does not currently recognize same-sex marriages regardless of where they were performed. However, individual states that have legalized same-sex marriage do recognize same-sex marriages performed in Mexico. Also, same-sex marriages performed in the United States are recognized by the Mexican government, including for immigration purposes.
Of course.
Some US states may recognize British Civil Partnerships as if they were same-sex marriages or civil unions. However, most will not. Also, the US federal government will only recognize marriages, whether they be same-sex or opposite-sex.However, same-sex marriage is legal in both the United States and Great Britain.