Complex sentence: While still in Manila Baltao and his companions were walking along the paved streets of Intramuros when they came upon Magallanes street and, then and there, they decided to recommend that the new municipality be named Magallanes in honor of Ferdinand Magellan.
Split into simpler sentences: While still in Manila, Baltao and his companions were walking along the paved streets of Intramuros when they came upon Magallanes street. There and then, they decided to recommend that the new municipality be named Magallanes in honor of Ferdinand Magellan.