What day did the world famous game Fortnite, debut?

Hey! so, the game Fortnite debuted on July 21 2017

Explanation:

Hope I helped! Have a good day.

including the octave, the answer would 8 notes in a major scale with one note being played twice. ex) c major scale includes: c, d, e, f, g, a, b, c

notice that c is played twice

however, if you were to ask me how many different notes are in a major scale- the answer would be 7.