Final answer:
Sonia Sotomayor was the first Hispanic appointed to the U.S. Supreme Court, nominated by President Obama and starting her service in 2009.
Step-by-step explanation:
The first Hispanic appointed to the U.S. Supreme Court was Sonia Sotomayor. She was nominated by President Barack Obama and began her tenure as a Supreme Court Justice in 2009. Prior to her appointment, she served as a judge on the U.S. Court of Appeals for the Second Circuit. Her nomination was a significant moment in history, as she became the first Latina to serve on the highest court of the United States, contributing to the diversity of the judiciary and providing a broader representation of American demographics on the Supreme Court bench.