The correct answer to this open question is the following.
Unfortunately, you did not include the two maps. Without them, we do not know your specific reference.
However, trying to help you and after doing some deep research, we can say the maps portray the Spanish, British, and Dutch trade maritime routes from 1750 to 1850. The other map shows the many trade routes in 2010 that practically crossed all over the world.
That is why we can answer that one significant reason for changes in the patterns of global economic interactions from circa 1750 to circa 2000, as illustrated by the two maps are the technology and modernization of means of transportation that today include land, air, and sea.
Trade has been the activity that has developed most rapidly all over the world in those years. Today, there are international organizations and free trade agreements that connect the world through trade.
More people on the planet started to require more products from all places and developed nations exploited natural resources and raw materials and produced more and better goods in their industrialized cities that were exported.
A) Ethnic divisions hindered the development of land-based empires in the period 1450-1750. For example, the Manchu people in the Qing Dynasty in China sought to preserve their ethnic values while ruling China, which proved to be an obstacle for them to rule the vast majority of Han Chinese.
B) Ethnic divisions also hindered the development of maritime empires in the period 1450-1750. For example, the ethnic division between the French colonists and the Haitian people led to multiple Haitian rebellions and ultimately the Haitian Revolution against France.
C) Many land-based empires and maritime empires institutionalized hierarchical distinctions amongst different ethnic groups, often with the use of slavery. The European colonists, for instance, made African Americans the lowest class in American society by enslaving them. Similarly, Christians under Ottoman rule are recruited as janissaries. In both examples, the ruling class adopted policies that limit the social mobility of the ethnic groups that are alien to themselves.
1. Mahoney states that "the needs of speakers drive language change" (nsf.gov).
5. Johnson claims that the English language began to deviate from its Germanic origins (4).
6. In the eighteenth century, English was "departing from its original Teutonick character"(Johnson 4).
It will provide an instant answer!