Answer :
Charles the bald and Charlemagne contribute to the expansion & diffusion of christianity throughout western europe becuase christianity spread through relocation diffusion by missionaries and hierarchical diffusion when the roman empire made christianity.
Christianity became the dominant religion in North and South America because of the early explorers and colonizers from Europe were Christians.
Charlemagne was determined to improve education and religion and bring Europe out of turmoil. To do this he launched a thirty-year military campaign from 772–804 of conquests that united Europe and spread Christianity.
He is famous for his work towards the development of education like building of schools and standardization of curriculum. He ended the Dark Age in Western Europe by initiating the carolingian renaissance, a period of cultural enhancement.
He helped bring Europe out of a state of devolution. He helped spread christianity throughout his empire and ushered in what is known as the carolingian renaissance. This was a period of increased cultural activity, including the rise of literacy, architecture, and scriptural studies.
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