The name “LaSalle Explorers” is the result of mistaken identity. The school is named after St. Jean-Baptiste de la Salle, who created schools for the poor in France and never did any exploring. But long ago a Philly sportswriter, who thought they were named after the French explorer Sieur de La Salle, called them the Explorers and the name stuck. What name was the explorer Sieur de La Salle born with?