Complex sentence: Comalapa belonged to the department of San Salvador from June 12,1824, until May 22,1835; from here, until February 14,1855, it belonged to the department of Cuscatlán; and since this last date has belonged to Chalatenango.
Split into simpler sentences: Comalapa belonged to the department of San Salvador from June 12,1824, until May 22,1835. From May 22,1835, until February 14,1855, it belonged to the department of Cuscatlán; and since this last date has belonged to Chalatenango.