I think you are asking about the Full Faith and Credit clause, which states that contracts binding in one state are to be recognized in another state. This generally includes marriages, adoptions, and property purchases.
Full Faith and Credit Clause
the Full Faith and Credit Clause in the U.S. Constitution, which requires states to recognize and enforce legal decisions made in other states. This principle aims to promote consistency and fairness in legal matters across different states.
By ensuring that each state will accept the decisions of civil courts in other states.
how did the grandfather clause effect blacks after the civil war
The Equal Protection Clause.
After the civil war, the 13th, 14th and 15th amendments were added to the constitution and the three-fifth clause and the fugitive clause were stated.
The federal government has extremely limited authority over the states, Article VI, Clause 2 of the United States Constitution, is known as the Supremacy Clause, but even it has limits. The 10th amendment guarantees that the states retain all power not specifically granted the federal government by the constitution.
full faith and credit clause
Mr. Curtain
the Civil Rights Act of 1964
freed former slaves
The northern States had been abolitionist all along and freed slaves basically had the same civil rights there as anyone, including the right to vote. The southern States recognised the right of slave owners to free their slaves but their civil rights were in practice unequal to those of whites, a situation that was to remain almost unchanged until the 1960s. The right to vote in southern States was non-existent for blacks before the Civil War. Even after the Civil War, many southern States would enact the so-called Grandfather Clause in their voting legislation to keep blacks from the voting registers. This Grandfather Clause meant that anyone wishing to vote had to pass a literacy test or even several tests first before he could register, unless his father/grandfather already had been qualified to vote (that is, before the Civil War). This meant that illiterate whites could simply register, and illiterate blacks had to pass the tests first.
Yes. Some countries worry about the legality of marriages, so it's not really a terrible thing.