Complex sentence: There was a wooden bridge over the Calder on the main road from Wakefield to Huddersfield in the 15th century, and probably money for its upkeep was left in local wills dated 1404 and 1492, a custom that continued into the 16th century.
Split into simpler sentences: There was a wooden bridge over the Calder on the main road from Wakefield to Huddersfield in the 15th century and probably. Money for its upkeep was left in local wills dated 1404 and 1492, a custom that continued into the 16th century.