The original carrier for the plague-infected fleas thought to be responsible for the Black Death was the black rat, and it has been hypothesized that the displacement of black rats by brown rats led to the decline of bubonic plague. This theory has, however, been deprecated, as the dates of these displacements do not match the increases and decreases in plague outbreaks. ~ From Wikipedia ('Brown Rat')
There were several reasons: England was in upheaval after the War of the Roses http://en.wikipedia.org/wiki/Wars_of_the_Roses People were not comfortable with some of the political and religious changes, so they sought a new life. England was also dealing with the Black Plague. Although the plague was around as early as the 14th century there were increases in outbreaks that led some people to migrate away. http://en.wikipedia.org/wiki/Black_Death
The Black Plague indirectly led to the Renaissance.
Although there have been isolated incidents in Prarie Dog populations and in Human populations in India and Africa, there have been no significant outbreaks of Plague. Improved sanitation has led to fewer rats who carry the fleas that are infected with the bacteria.
plague continued spreading and many people died, which led to the black death
Since one third of Europe's population died from the plague, it caused short labor. As a result, workers demanded higher wages. The landlords refused the demands, which led to peasant rebellion in England, France, Belgium, and Italy.
The plague, and wars.
The short answer is: infighting and the plague.
1. Both happened during the 14th century; 2. Both affected England and France; 3. Both led to great loss of lives.
it was a plauge that gave everyone ugly noses and stupid accents
The number of deaths associated with the Plague cut the population from 450 million down to 350 million. The Black Death also brought massive pogroms against Jews, who were initially blamed for the outbreak. Ironically, the shortage of labor caused by the Plague led to the fall of feudalism and led to a system of wage labor.
The Black Plague, or the bubonic plague, caused widespread death across Europe during the 14th century, leading to a significant decline in population. This resulted in abandoned villages and farmlands, which in turn led to a shift in land use patterns and a disruption of trade routes. The reduced population also impacted urbanization and influenced the overall demographic landscape of Europe.