Nikola Tesla was an inventor in the old days and he was also an engineer too.
They did spend seven years at sea, while helen has also spent seven years in egypt as well, I believe.
B) Striking workers in Poland started the Poznan uprising. The Poznan protests, which took place in 1956, were several massive protests against the government of Poland, for workers to receive better job conditions, however the government met this with violent repression.
Answer:
Printing press
Explanation:
The printing press was allowed for quicker production of text, as well as having the ability to duplicate in the thousands. A single pamphlet would be carried from one town to another, where it could duplicate even more.