Established by law in 1850 as the intersection of 100° longitude and 36° 30' latitude, the northeast corner of Texas remained in dispute for 79 years. Of about nine surveys made to locate the corner on the ground, almost none coincided. Even so, three blocks were annexed to Texas from Oklahoma in 1903 and 1929, causing confusion for landowners. One man claimed he went to bed in Oklahoma and awoke in Texas. In 1929, the U.S. Supreme Court had a final survey run. Some people with land formerly in Oklahoma could not afford to repurchase it in Texas, but the exact site of the corner was at last determined.