You can find it in art history books, Wikipedia
Explanation:
The first consistent style was called Romanesque, which was at its peak between 1050 and 1200. Romanesque churches used art, largely painting and sculpture, to communicate important things
Answer:
Determine size (by counting lines and spaces between the notes)
Determine if the top note is in the major scale of the bottom note.
If it is: the interval is perfect (if it is a unison, fourth, fifth, or octave) or it is major (if it is a second, third, sixth, or seventh)
