Same-sex marriage: Not legal from Nov 4, 2004 to Jun 26, 2015.
Constitutional amendment adopted by state wide vote in 2004. Passed with 62% of the vote. Text of amendment follows:
ยง 15.11 Marriage Amendment
Only a union between one man and one woman may be a marriage valid in or recognized by this state and its political subdivisions. This state and its political subdivisions shall not create or recognize a legal status for relationships of unmarried individuals that intends to approximate the design, qualities, significance or effect of marriage.