I don’t recall abt the ones that wasn’t successful but I know the French Revolution was successful
Three promotional materials used by public relations include pamphlets, books and articles.
The science of building relationships between an organization and its main audiences is called public relations. This branch may sometimes use promotional materials to reach their audience to promote their products and services.
Answer:
British mathematician William Bourne made some of the earliest known plans for a submarine around 1578, but the world’s first working prototype was built in the 17th century by Cornelius Drebbel, a Dutch polymath and inventor in the employ of the British King James I. Drebbel’s sub was probably a modified rowboat coated in greased leather and manned by a team of oarsmen. Sometime around 1620, he used it to dive 15 feet beneath the River Thames during a demonstration witnessed by King James and thousands of astonished Londoners. Unfortunately, none of Drebbel’s plans or engineering drawings has survived to today, so historians can only guess about how his “diving boat” actually operated. Some accounts say it submerged via a collection of bladders or wooden ballast tanks, while others suggest that a sloping bow and a system of weights were used to propel the boat underwater when it was rowed at full speed.
Explanation:
Answer:
False
Explanation:
The Early Grand Princes of Kev did not become Roman Catholics. One of the Early Grand Princes of Kev known as Vladimir Sviatoslavich ( Vladimir the great ) was the first Prince to be become a Christian.
He was an Orthodox Christian i.e and Orthodox Catholic and not a Roman Catholic. He practised Byzantine Christianity.
As an Orthodox Christian or Catholic, they spoke Greek and the Priests were allowed to get married.
