Philosophy is like asking big questions about life, the world, and everything in it. People have been asking these kinds of questions for thousands of years. When they talk about the history of philosophy, they're referring to all the times people have thought about these questions - and the different ways people have answered them - over thousands of years. Different cultures around the world have had their own ways of looking at the big questions of life and their own answers. Different points in time have also changed how people think about big questions. Over the years, different people have found different answers to the same kinds of questions, and each answer can be part of philosophy.