Who much of europe’s population died from plague inter 1300s

The Black Death is estimated that it killed 30–60% of Europe's total population. The plague may have reduced the world population from an estimated 450 million down to 350–375 million.

The 1300´s plague, known as the "Black Death" resulted in a percentage of 30% to 60%    -( this cipher varies according to different historians; Norwegian Historian Benedictow places it as the 60% high end )-     of the population of Europe´s death toll. The rate of death was higher in more densely populated areas.

in the 1800s, chinese workers migrated to the united states, first to work in the gold mines, but also to take agricultural jobs, and factory work, especially in the garment industry. chinese immigrants were particularly instrumental in building railroads in the american west, and as chinese laborers grew successful in the united states, a number of them became entrepreneurs in their own right. as the numbers of chinese laborers increased, so did the strength of anti-chinese sentiment among other workers in the american economy. this finally resulted in legislation that aimed to limit future immigration of chinese workers to the united states, and threatened to sour diplomatic relations between the united states and china.