Complex sentence: Cancuén was largely ignored until 1967, when students from Harvard University uncovered the ruins of the largest Palace in the Maya world, with more than 200 rooms and 12 Patios, its walls are up to 1.8m thick, it has more than.
Split into simpler sentences: Cancuén was largely ignored until 1967, when students from Harvard University uncovered the ruins of the largest Palace in the Maya world. Its walls are up to 1.8m thick and, with more than 200 rooms and 12 patios, it has more than.