During the 1840s americans use the idea of manifest destiny for ?

Westward expansion.

Explanation:  Both government and individual felt nothing should stop the all-powerful drive to expand the size of the country.

martin luther king (1929-1968) was an activist for the african american rights, mr. king has a profile of a kind leader that built a tenacity, respect and full of hope future. he was an activist through civil disobedience and no violence pressure mechanisms. he tried to build a more egalitarian and fair society. his efforts carried a reivindication message of the civilian rights to every west corners. for that reason, he won the nobel prize in 1964.

oil! is what i am assuming