Input (grade 11): It would take some 170 years and the help of the Xiu Maya before the last recognized Maya stronghold fell, that of the Itza capital of Tayasal on Lake Petén Itzá, in 1697.
Output (grade 8): It was about 170 years later before the last Maya stronghold fell, that of the Itza capital of Tayasal on Lake Petén Itzá, in 1697.