Final answer:
English diffusion to the Western Hemisphere occurred via colonization and migration starting in the seventeenth century. The establishment of English colonies in North America and later the cultural and technological ascension of the United States solidified English's global dominance.
Step-by-step explanation:
The diffusion of English to the Western Hemisphere happened through several waves of colonization and migration. At the start of the seventeenth century, various groups such as pious Puritan families and those seeking to escape overcrowding in England migrated to the Americas. They established permanent settlements such as Plymouth, Massachusetts Bay, New Haven, Connecticut, and Rhode Island colonies in New England, in addition to those in the Chesapeake Bay area like Virginia and Maryland.
These English settlers brought with them their language and cultural practices. As English settlers increased in number, English became more widespread. Over time, as the United States rose to become an economic, cultural, and technological superpower after World War II, the global dominance of English was further solidified. The use of English was also promoted by technological innovations such as air travel, the internet, personal computers, and iPhones, which were largely developed by English speakers.