Complex sentence: The first Turners club, a German gymnastics association influenced by the suggestions of Turnvater Jahn, was founded in 1899; exercise and practice took place where the Turnhalle stands today.
Split into simpler sentences: The first Turners club, a German gymnastics association influenced by the suggestions of Turnvater Jahn, was founded in 1899. Exercise and practice took place where the Turnhalle stands today.