Complex sentence: Historic Barasoain started as a village of Malolos in 16th century and created as an independent town in 1859 and reannexed in Malolos in 1903 and this explains the presence of a stone church here.
Split into simpler sentences: Historic Barasoain started as a village of Malolos in 16th century and was created as an independent town in 1859. It was reannexed with Malolos in 1903 and this explains the presence of a stone church here.