A notable and unique achievement of the Iroquois League was...

Forming a union among all Native American groups
Creating a constitution for their government
Growing crops such as beans, corn, squash, and potatoes

the answer you are looking for is letter c. he supported the idea of a un-run war in serbia to bring peace to the area.

supporting this idea was an important step that bill clinton took in order to attempt to secure bosnia and keep the peace there. he led peace reconciliations -known as the dayton agreement- leaving bosnia as a single state made up of two parts with one central government.

besides the fact that abraham lincoln abolished slavery, and greatly benefit black people, he had a heavy impact of the definition of what democracy was, and should be.

b europeans take corn to africa. corn becomes an important crop there.