To the wonderful people of My Chem.....

Can anyone help me? I know I've asked alot lately about my school work but sometimes it's just too fustrating to do on my own...anyways....here is the question.

-Before the Spanish reached the Inca Empire,it had already been weakend by a dispute over the ___________.Eventually the despute was settled and ____________ became the leader of the Incas.

There's only one word in each blank obviously and I can't find anything in my notes that would fit there. :\

If you think you know,could you help me out?
Please and thank you,
~Emylee :)

Oh and,This is due tomorrow so if you could comment as soon as you see this if you think you know,I'll be sitting here staring at the screen untill I see a comment...I'll probably look like an idiot but I really need this!

Please and thank you,
~Emylee :)