Complex sentence: He had begun his job with the New York Telephone Company on October 13,1910, he made the decision to form his own agency on November 13,1911, and he went on to weave the number into the lore of the agency.
Split into simpler sentences: He had begun his job with the New York Telephone Company on October 13,1910. And he went on to weave the number into the lore of the agency.