Easy defeat of foreign invaders is obviously positive, so it couldn’t be a factor that would topple an empire. Security is good.
Before the Cherokee left on the Trial of Tears, the Cherokee people were divided, that was the best way to handle the government´s determination to get its hands on their territory. Some wanted to stay and fight, ohers thought it was better to agree to leave in exchange for money and other concessions.
In 1835 a few self appointed representatives of the Cherokee nation negotiated the treaty of New Echota, which traded all Cherokee land east of the Mississippi for US$ 5 Million, relocation assistance and compensation for lost properties.
Well every culture that felt like culture in past, present became a country... now the language is interesting because some countries speak the same language but just because either they learned it or they have the common cultural origin.
Answer:
A person must have been a citizen of the US for 7 years or more and must be 25 or older.
It was not quite a 100 years old yet but your close