Political Advertising in the Colonies

Boston 1775 has a guest blogger discussing "milestones"; no, not as in project planning but as in physical stones which mark the miles from a given point, in this case in Boston. An excerpt to explain the title:

Rather, most of the stones in the immediate Boston area were erected by prominent political figures, such as Samuel Sewall, Jonathan Belcher, and Paul Dudley. I’m guessing that those men saw the milestones partly as a public service, and partly as a billboard advertising their beneficence—just as we see signs near highway construction projects that give the names of government officials today.