American literature  is one that was written or produced in the United States and its preceding colonies
American literature is literature written or produced in the United States and its preceding colonies
That is very true my friend,  British life had a big influence on the way literature was before American came into existence
yes, and also the American literary tradition thus began as part of the broader tradition of English literature.
We can see that most of American styles are actually intertwined with British 
American Literature has been regarded since its inception as the preeminent periodical in its field
Franklin, Alexander Hamilton, and Thomas Paine. Thomas Jefferson's United States Declaration of Independence solidified his status as a key American writer. It was in the late 18th and early 19th centuries that the nation's first novels were published. An early example is William Hill Brown's "The Power of Sympathy" published in 1791. Brown's novel depicts a tragic love story between siblings who fall in love without knowing they are related. 
With an increasing desire to produce uniquely American literature and culture, a number of key
American literature
American literature is literature written or produced in the United States of America and its preceding colonies (for specific discussions of poetry and theater, see Poetry of the United States and Theater in the United States). Before the founding of the United States, the British colonies on the eastern coast of the present-day United States were heavily influenced by English literature. The American literary tradition thus began as part of the broader tradition of English literature. 
The revolutionary period is notable for the political writings of Benjamin