<span> a revolution in communication occur in the 15th century
The first revolution in communication happened after Johanne Guttenberg developed the first movable printing in 1439, which allow people to easaily write and exchange information from one place to another</span>
Answer:
consitpation
getting eaten by dinosaurs
the gross food they had
not having a starbucks down the road
Explanation: big brain
Serious space research began in world war two.In 1957 the Russians and in 1958 the Americans launched unmanned satellites 120 miles above the earth atmosphere. In 1961 the USER sent the first man in "space". Afterwards the two countries raced each other putting larger craft with Upto 4 persons in space.After that many children dream being astronauts.
