Final answer:
Paul claimed to have worked harder than the other apostles in spreading the message of Christianity. His missionary work took him to various Mediterranean cities and he often faced hardships, including imprisonment, for his teachings.
Step-by-step explanation:
The question at hand is related to the activities and teachings of Paul the Apostle, a critical figure in the early spread of Christianity. Specifically, the question asks what Paul claimed to have done more than other apostles. While the reference texts provided do not explicitly state Paul's claims over the other apostles, traditional biblical accounts, particularly in the New Testament, document that Paul often mentioned he worked harder than any of the other apostles. For example, in 1 Corinthians 15:10, Paul states, 'But by the grace of God I am what I am, and his grace to me was not without effect. No, I worked harder than all of them—yet not I, but the grace of God that was with me.' Paul's role was instrumental in spreading the Christianity message throughout Mediterranean cities, such as Ephesus, Corinth, Thessalonica, and Rome. He often emphasized that his teachings stemmed from revelations received directly from God. His commitment was such that he faced considerable hardship, including imprisonment, as document in the actions of the proconsul.