What were the buddha’s two main sets of teachings called? what was each one about?

Eightfold Path: the eight steps to “Enlightenment”.

Four Noble Truths: ask why there is suffering and what one can do to escape suffering. Basically says that suffering is inevitable but if you become “Enlightened” you will move through the suffering.

Explanation:

richard nixon led the investigation that resulted in alger hiss being convicted of prejury.