European American Explorers Timeline By Bladen R Period: 1540 to 1720 Spain Claims NE 1st Time Period: 1682 to 1763 France Claims NE 1st time Period: 1763 to 1799 Spain Claims NE 2nd Time Period: 1799 to 1803 France Claims NE 2nd time Period: 1803 to 1850 USA claims Nebraska
