Answer:
During the 20th century there was a large increase in the variety of music that people had access to. Prior to the invention of mass market gramophone records (developed in 1892) and radio broadcasting (first commercially done ca. 1919–20), people mainly listened to music at live Classical music concerts or musical theatre shows, which were too expensive for many working class people; on early phonograph players (a technology invented in 1877 which was not mass-marketed until the mid-1890s); or by individuals performing music or singing songs on an amateur basis at home, using sheet music, which required the ability to sing, play, and read music.
Explanation:
Im probably older then you and I know this stuff.
Answer:
Im not fully sure, but I think that it is a drawing by leonardo da vinci, and it was one of his ideas for a thing kind of like a helicopter.
<span>you wrote for whoever would pay you (economic factor) </span>
The center of the Roman Empire is in Italy. ROME. And to be specific,
there was a spot in the forum called the "umbilicus urbis Romae" which
is translated "the center of the city of Rome" or "the navel of Rome".
At any rate, it was the spot from which all distances, from all over the
empire, were measured.
