Calculus
http://www.mhhe.com/math/calc/smithminton/index.mhtml --timeline history of calculus here
http://www.mhhe.com/math/finmath/hoffmann/ -- click on "Online Learning Center" to access the full text and exercises
http://www.mhhe.com/math/calc/smithminton/index.mhtml --timeline history of calculus here
http://www.mhhe.com/math/finmath/hoffmann/ -- click on "Online Learning Center" to access the full text and exercises