Complex sentence: The El Presidio Real de Santa Bárbara (or Royal Presidio of Santa Barbara) was a military installation in Santa Barbara, California, built by Spain in 1782, with the mission of defending the "Second Military District" in California.
Split into simpler sentences: The El Presidio Real de Santa Bárbara, also knoen as the Royal Presidio of Santa Barbara, was a military installation in Santa Barbara, California. It was built by Spain in 1782, with the mission of defending the "Second Military District" in California.