Complex sentence: Built by Walkers, Parker & Co in 1799, the tower is the oldest of three remaining shot towers in the UK, and was used to make lead shot for the Napoleonic Wars by the method pioneered in the 1780s by William Watts.
Split into simpler sentences: Built by Walkers, Parker & Co in 1799, the tower is the oldest of three remaining shot towers in the UK. It was used to make lead shot for the Napoleonic Wars by the method pioneered in the 1780s by William Watts.