Which of the following statements is true regarding the developments within the Cherokee Nation by 1830?

By 1830, the Cherokee Nation had made significant advancements in their societal structure, one of which included the development of a bilingual newspaper known as the "Cherokee Phoenix." This publication, which began in 1828, was instrumental in promoting literacy and facilitating communication among the Cherokee people both in their own language and in English. The existence of such a newspaper exemplified the Nation's efforts to modernize and adapt to changing circumstances while maintaining their cultural identity.

The other statements do not reflect the reality of the Cherokee Nation in this period. They did not entirely abandon their traditional lifestyles, as they sought to integrate elements of European-American culture while retaining their heritage. They were recognized as a sovereign nation rather than a U.S. state, which reflects their struggles for autonomy. Additionally, while hunting remained part of their livelihood, they were increasingly engaged in agriculture and trade, indicating a shift from a purely subsistence economy.