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Alvarez de Pineda explored the Texas Coastline for Spain in 1519.
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Cabeza de Vaca explored the Texas Interior for Spain in1528.
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Francisco de Coronado explored northern Texas in Spain in 1540.
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Hernando de Soto explored near the Mississippi River for Spain in 1542.
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Minet explored the Mississippi River in Texas for France in 1684.
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Sieur de La Salle explored in Texas near the Gulf of Mexico in 1685 for France.
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Alonso de Leon explored the Texas Coast for France in 1690.