The subject matter may not have changed very much, but pedagogical techniques certainly have. A modern textbook is generally much easier to actually read and le

The subject matter may not have changed very much, but pedagogical techniques certainly have. A modern textbook is generally much easier to actually read and learn from than a 100-year-old textbook. There's also going to be minor stuff like you probably don't need to have a section on "how to integrate by using tables of antiderivatives" anymore.