Complex sentence: Until recent decades, accounts of Tejano participation in the Texas revolution were notably absent; and historians such as Timothy M. Matovina and Jesús F. de la Teja are changing the perspective of the battle's events.
Split into simpler sentences: Until recent decades, accounts of Tejano participation in the Texas revolution were notably absent. Historians such as Timothy M. Matovina and Jesús F. de la Teja have added the Tejano perspective of the battle's events.