Complex sentence: At different times throughout its history, Heritage Hall underwent numerous renovations and was used as a dormitory, barracks during World War I, a machinery classroom, and finally a library when Valparaiso University was bought by the Lutheran University Association in 1925.
Split into simpler sentences: At different times throughout its history, Heritage Hall underwent numerous renovations. It was used as a dormitory, barracks (during World War I), a machinery classroom, and finally a library when Valparaiso University was bought by the Lutheran University Association in 1925.