Final answer:
In October 1721, when Franklin was 15 years old, he started printing America's first German-language newspaper, the 'Die Philadelphische Zeitung', also known as 'The Pennsylvania Gazette' in English.
Step-by-step explanation:
In October 1721, when Franklin was 15 years old, Franklin started printing America's first German-language newspaper, the 'Die Philadelphische Zeitung', which was also known as 'The Pennsylvania Gazette' in English. Franklin used the newspaper as a platform to express his views on social and political issues, as well as to promote his various projects and businesses. The newspaper was widely read and played an important role in disseminating news and information to the residents of Philadelphia.