The government restricted the reservation lands by setting boundaries for each tribe
They began using harsh discipline, so that citizens would be less swayed to commit illegal crimes
The Inca culture was one of the most developed in pre-Columbian America. Among their achievements, was their architectural ability. Inca structures were made of stone that fit together, with extraordinary stability. The buildings have survived for centuries, with no use of mortar, in areas that are prone to earthquakes and volcanic activity.
The Inca also developed calendars based on astronomical observations. Astronomers understood equinoxes, solstices and zenith passages. Numerical information, particularly for administration, was stored in <em>quipu</em> strings.
In terms of art, Inca ceramics were highly advanced, although most of their silver and gold work was melted down by the Spaniards.
They were also advanced in medicine, performing skull surgeries successfully and with high survival rates.
They are farming FRESH WATER algae so I would say Seaweed
Sea can grow in Fresh water
“Nathanael Greene in The American Revolution. Nathanael Greene (1742–1786) was a general in the American Revolution who also served in the Rhode Island assembly. He fought with George Washington at the battles of Trenton, Brandywine, Germantown, and Valley Forge”. -shmoop.com
