Answer: The Spanish said the rafts were in the shape of the extended fingers of a hand. The large balsa logs, lashed together with henequen fiber, formed the main deck of a raft. Seawater passed freely between and over the logs making it very difficult for rafts to be swamped by heavy seas.
As for the rivers, the colonists were aware you must have water to successfully maintain life whether it be human life or plant life, it is necessary. Also being close to water helped them in the workforce, like carrying out trade or fishing It was a "win win" for them.
Neither side of the fight could advance due to the military prowess of the other
Sedition and espionage act
Answer:
In 672, Silla unified the three kingdoms by winning the war against the Tang Dynasty. It became the first country to unify its territory on the Korean Peninsula. After accepting the people of Goguryeo and Baekje and winning the war against the Tang Dynasty, they achieved true unification of the three kingdoms