The analytic/continental split happened around the 19th century. Both traditions read more or less the same thinkers in Western philosophy (e.g. Plato, Aristotle, Aquinas, Descartes, the Enlightenment Rationalists, the Enlightenment Empiricists, the Enlightenment Idealists, Kant) up until then. Once you hit the 19th century, stick with the readings that deal with the problems set out by Frege, Russell, and Moore, who are trying to get as close to science and formalizing problems in a clear, mathematical way as possible. As a result, the philosophical agenda uses conceptual engineering as a general approach. Generally speaking, any topic that fits into a "Philosophy of X" (e.g. Philosophy of mind, language, ethics, action, etc) is part of the analytic tradition.

The continental thinkers (starting with Nietzsche, Husserl, Heidegger) are asking questions like "What is one's place in the world?" or "How do forces of history affect the deepest parts of people?" or "How does our Western scientific worldview limit other kinds of knowledge?" On the surface, this is going to seem a lot more 'subjective' and is partly why it gets obscure very, very fast. Personally, I think it's still worth reading, but that's because I find those issues interesting to begin with.