[Lite_Noxus]

I googled a couple of things and yet I still didn't get my answer. I searched for about an hour and only got one answer for my questions.

Questions:
1_What is the significance of the Mayan Architecture evidenced in TEMPLE 1 at Tikal?
2_What is the significance of a symbol from the Mayan Calendar?
3_Why was Cortes impressed when he arrived in Tenochtitlan in 1519?

{4_What engineering technique was described by Garciasco de la Vega?}
{5_Why was it a significant achievement?}

{6_How did the Incan government unite its empire in the Andes Mountains?}
{7_ What is the significance of this accomplishment?}

ANSWERED:]
[ANSWERED]8_What specific farming and building techniques were used by the Incas?[ANSWERED]