Catholic Church began to fill the power vacuum left behind by the dissolution of the Roman Empire in the West. This was during the Middle Ages. There are a lot of factors why Roman Empire failed to survive. One of the factor is religion.
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Cannons were used primarily as anti-infantry weapons until around 1374, when large cannons were recorded to have breached walls for the first time in Europe. Cannons featured prominently as siege weapons, and ever larger pieces appeared.
The answer to this question is: Join their family
The United States usually will grant a green card toward people from another country if they're legally a part of legal citizen's family.
This becomes the reason why so many people fake their marriage with citizens of united states, simply because it will be easier to obtain green card compared to the normal screening.
The classical republicans concerned themselves far more intensely with the proper forms and duties of government, and they were always critical of both monarchs and other government actors who overstepped their prerogatives.
In the old times, it was used as a word for a pirate or a robber, while in the modern era, it is someone who engages in long speeches in order to prevent a bill from being voted. He essentially steals time from the parliament.