The Prince George’s Sentinel and the Montgomery Sentinel have ended publication, 164 years after the area newspapers were founded.

The first edition of the Montgomery Sentinel was published on Aug. 11, 1855, as a partisan newspaper supporting the newly formed Democratic Party.

Publisher Matthew Fields opposed Abraham Lincoln’s presidency, although the president later gave him amnesty after he was arrested on suspicion of “Southern sympathies.”

His wife, Rebecca, ran the paper after his death, staying involved until 1930. The paper was then sold to a succession of local families, and it long served as a proving ground for journalists such as Bob Woodward.

A sister paper, the Prince George’s Sentinel, was in its 88th year of publication, covering stories from along the Route 1 corridor and the rest of the county.

Both papers saw its revenue decline as Craigslist undermine classified ads and Facebook and Google poached the advertising market. From a circulation of around 200,000 in the 1990s, the two papers declined to about 5,000 in each county, according to the publisher.

In 2015, the Prince George’s Gazette and the Montgomery Gazette folded for similar reasons, and the Washington Post covers the two counties much less intensely as it has moved more towards national news.

Locally, the nonprofit Hyattsville Life and Times remains in print thanks to revenue from city-placed circulars and local advertisers, and College Park is moving ahead with a new publication on a similar arrangement.

In addition to the Hyattsville Wire, which started in 2012, several online blogs and publications have also sprung up in recent years including Route 1 Reporter, an online publication focusing on politics and policy news in Prince George’s County available only to subscribers, Route One Fun, which covers local events in Prince George’s County and D.C., and the Greenbelt Online, a nonprofit focusing on lifestyle news in Greenbelt.