The A Level History syllabus offers a really exciting choice of options to study. All A Level History courses now require the study of a minimum 200 years of history, plus a unit of British history. Conflicts If you want to study what happens when big ideas crash against each other, then this option is for you. You will study the clash of Christianity and Islam in the Crusades, including the capture of Jerusalem and the rise of Jihad. Alongside this you will investigate the conflict between Protestantism and Catholicism in Tudor Britain, arguably one of the most significant periods in British History.