Periods of European art music

I am using the following book to learn about the different styles of music:-
Keys to Stylistic Mastery (28 Late Elementary to Early Intermediate Pieces from Five Style Periods) by Ingrid Jacobson Clarfield and Dennis Alexander.

There are different periods of European art music per below. Details can be obtained from the link below: http://en.wikipedia.org/wiki/Common_practice_period

Musical Era #1: Prehistoric
Musical Era #2: Ancient (before AD500)
Musical Era #3: Early (500 to 1760)
Medieval (500 to 1400)
Renaissance (1400 to 1600)
Musical Era #4: Common practice (1600 to 1900)
Baroque (1600 to 1760)
Classical (1730 to 1820)
Romantic (1815 to 1910)
Musical Era #5: Modern and contemporary (1900 to present)
Impressionist (1890 to 1940)
20th century (1900 to 2000)
Contemporary (1975 to present)

In the book which I used, the 5 periods which it covers are
(1) Baroque Period
(2) Classical Period
(3) Romantic Period
(4) Impressionist Period
(5) Contemporary Period