Final answer:
Christianity expanded through proselytizing, conversions, political relationships, and the work of missionaries during 600 C.E. to 1450 C.E.
Step-by-step explanation:
The Expansion of Christianity from 600 C.E. to 1450 C.E.
During this period, Christianity expanded through various means:
- Proseyltzing and Conversion: Christian leaders actively sought to convert others to their faith. Theologians disseminated religious knowledge and constructed a unified Christian identity.
- Political Relationships: Non-Christians desired better political relationships with Christians, which led to conversions.
- Missionaries and Force: Christian perseverance and forced conversions, such as by the Frankish king Charlemagne, also contributed to the spread of Christianity.
By the eleventh century, almost everyone in Europe was a Christian, either Latin Christian in the West or Orthodox Christian in the East.