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Qaagi - Book of Why

Causes

Effects

by the micro - organism Yersinia pestis , carried by the tropical rat flea ( Xenopsylla cheopis ) which preyed on black rats living in European cities during the epidemic outbreaks of the Middle Ages(passive) to have been caused byThe Black Death

the micro - organism Yersinia pestis , carried by the tropical rat flea ( Xenopsylla cheopis ) which preyed on black rats living in European cities during the epidemic outbreaks of the Middle Ages(passive) to have been caused byThe Black Death

by the microorganism Yersinia pestis , carried by the tropical rat flea ( Xenopsylla cheopis ) , which preyed on black rats living in European cities during the epidemic outbreaks of the Middle Ages(passive) to have been caused byThe Black Death

the microorganism Yersinia pestis , carried by the tropical rat flea ( Xenopsylla cheopis ) , which preyed on black rats living in European cities during the epidemic outbreaks of the Middle Ages(passive) to have been caused byThe Black Death

by the micro - organism Yersinia pestis , carried by the Tropical Rat Flea ( Xenopsylla cheopis ) which preyed on Black Rat living in European cities during the epidemic outbreaks of the Middle Ages(passive) to have been caused byThe Black Death

the micro - organism Yersinia pestis , carried by the Tropical Rat Flea ( Xenopsylla cheopis ) which preyed on Black Rat living in European cities during the epidemic outbreaks of the Middle Ages(passive) to have been caused byThe Black Death

by the microorganism Yersinia pestis , carried by the tropical rat flea , which preyed on black rats living in European cities during the epidemic outbreaks of the Middle Ages(passive) to have been caused byThe Black Death

the micro - organism Yersinia pestis , carried by the Tropical Rat Flea ( Xenopsylla cheopis ) which parasitized on the Black Rat living in European cities during the epidemic outbreaks of the Middle Ages(passive) to have been caused byThe Black Death

these pests which leads to the death of 200 million people(passive) caused byBlack Death incident

by a bacterium named Yersinia pestis , or Bubonic plague(passive) to have been caused byBlack Death

by a bacterium named Yersinia pestis , or Bubonic plague(passive) to have been caused byThe Black Death

by the bubonic plague bacterium Yersinia pestis(passive) to have been caused bythe Black Death

by the bubonic plague bacteria Yersinia pestis after all(passive) was caused byThe Black Death

by the bubonic plague bacteria Yersinia pestis(passive) was causedThe Black Death

by Yersinia pestis , a bacteria carried by Oriental rat fleas(passive) was caused bythe Black Death

the bacterium Yersinia pestis the one responsible for current plague outbreaks(passive) was caused byThe Black Death

the bacterium Yersinia pestis , one which is responsible for current plague outbreaks(passive) was caused byThe Black Death

a bacteria that was carried by the oriental rat flea which was carried by rats What causes bubonic plague or black death(passive) was caused bythe black death

by a bacterium named Yersinia pestis ( Plague(passive) to have been caused byThe Black Death

bubonic plague , a bacteria carried by fleas that typically infest rats and other rodents(passive) was caused byThe Black Death

by bubonic plague transmitted through Europe by rats and their fleas to humans(passive) was caused bythe Black Death

by bubonic plague transmitted through Europe by rats and their fleas to humans(passive) was causedthe Black Death

plague / Yersinia Pestiscausedthe Black Death

as the Yersinia pestis bacteria is believedto have causedthe Black Death

the bacteria ... a devastating bubonic plague pandemic in the 14th centurycausedthe Black Death

DNA from Yersinia pestis , the bacteriumcausesBlack Death

Yersinia pestis bacterium(passive) was caused byBlack Death

the bacterium Yersinia pestis(passive) is caused byBlack Death

by bacterium Yersinia pestis(passive) to have been caused byBlack Death

The bacterium Yersinia pestiscausedthe Black Death

a bacterium , Yersinia pestis(passive) was caused byThe Black Death

the bacterium Yersinia pestis(passive) was caused byThe Black Death

by the bacterium Yersinia pestis(passive) caused byThe Black Death

by the bacterium Yersinia pestis(passive) was caused bythe Black Death

by the bacterium Yersinia pestis(passive) is caused byThe black death

by the Yersinia pestis bacterium(passive) caused byThe Black Death

by Yersinia pestis bacterium(passive) is causedThe Black Death

Yersinia pestis ... the bacteriumcausedthe Black Death

by the bacterium Yersinia pestis(passive) was causedthe Black Death

the bacterium Yersinia Pestis(passive) is caused byThe Black Death

in loss of 1/3 of populationresultedin loss of 1/3 of population

a standardseta standard

eventuallydid leadeventually

in the deaths of an estimated 75 to 200 million people in Eurasiaresultingin the deaths of an estimated 75 to 200 million people in Eurasia

in the deaths of over 50 million people in Europeresultedin the deaths of over 50 million people in Europe

the death of 75 to 200 million people in Eurasiacausedthe death of 75 to 200 million people in Eurasia

the death of an estimated 75 to 200 million people in Europe and Asiacausedthe death of an estimated 75 to 200 million people in Europe and Asia

50 million deaths in Europe during the 14th centurycaused50 million deaths in Europe during the 14th century

in the deaths of up to 75?200 million people in Eurasia and North Africaresultedin the deaths of up to 75?200 million people in Eurasia and North Africa

the death of 1.5 million people , out of an estimated population at that time , of 4 millioncausedthe death of 1.5 million people , out of an estimated population at that time , of 4 million

in a dramatic contraction of the population of Europe , which led in turn to a contraction of the farming that was the basis of the medieval European economyresultedin a dramatic contraction of the population of Europe , which led in turn to a contraction of the farming that was the basis of the medieval European economy

a severe shortage of labour in all of Europecauseda severe shortage of labour in all of Europe

in the deaths of an estimated 75 - 200 millionresultedin the deaths of an estimated 75 - 200 million

the death of millions in 14th century Europecausedthe death of millions in 14th century Europe

a third of all people in Europe to die in the Middle Agescauseda third of all people in Europe to die in the Middle Ages

more than 50 million deaths in Europecausedmore than 50 million deaths in Europe

the Bubonic plague disease that killed between 75 to 200 million peoplewas causingthe Bubonic plague disease that killed between 75 to 200 million people

a labor shortage in Europecauseda labor shortage in Europe

a significant population decrease in Europecauseda significant population decrease in Europe

in China and spread to Europe via the Silk Roadoriginatedin China and spread to Europe via the Silk Road

in the deaths of up to people in Eurasia and North Africaresultedin the deaths of up to people in Eurasia and North Africa

to a decline in populationledto a decline in population

devastation to Europecauseddevastation to Europe

the deaths of a third of England 's populationcausedthe deaths of a third of England 's population

in a shift in the world view of people in 14th - century italyresultedin a shift in the world view of people in 14th - century italy

such massive population drops(passive) caused bysuch massive population drops

in China in 1334 and spread to Europeoriginatedin China in 1334 and spread to Europe

in the deaths of a third of Europe 's population,[11may have resultedin the deaths of a third of Europe 's population,[11

as an outbreak of plague in central Asiaoriginatedas an outbreak of plague in central Asia

a tremendous labor shortage in England , which caused the economy to collapsehad causeda tremendous labor shortage in England , which caused the economy to collapse

to his own death from the plague in 1654ledto his own death from the plague in 1654

the European population(passive) caused bythe European population

the population crisis(passive) caused bythe population crisis

The severe labor shortage(passive) caused byThe severe labor shortage

in Central Asia , where the disease is endemic in the rodent populationmost likely originatedin Central Asia , where the disease is endemic in the rodent population

the death of nearly half of its populationcausedthe death of nearly half of its population

in Central Asia or East Asia from where it traveled along the Silk Road ... reaching Crimea by 1347originatedin Central Asia or East Asia from where it traveled along the Silk Road ... reaching Crimea by 1347

a great labour shortagecauseda great labour shortage

a great shortage of labourcauseda great shortage of labour

labour shortage problem(passive) caused bylabour shortage problem

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