Complex sentence: The centre of a busy trading hub was not, however, the ideal place to build a spa, and the idea was eventually dropped in 1922; today the town's spa past has been largely forgotten.
Split into simpler sentences: The centre of a busy trading hub was not, however, the ideal place to build a spa, and the idea was eventually dropped in 1922. In the 21st century the town's spa past has been largely forgotten.