Complex sentence: In the mid- 1950s a Robert Carr of Monkton, Vermont, built a replica of the "Spray" using the shipbuilding methods of the late 1800s and announced his intention to sail around the world recreating Slocum's voyage.
Split into simpler sentences: In the mid- 1950s, Robert Carr of Monkton, Vermont, built a replica of the "Spray" using the shipbuilding methods of the late 1800s. He announced his intention to sail around the world recreating Slocum's voyage.