[3] The French and Indian War thwarted permanent settlement until the 1760s, when Irishman Henry Strongman moved from Peterborough.

In 1771, Governor John Wentworth incorporated the town, naming it after Strongman's birthplace: Dublin, Ireland.

Farmers found the soil hard and rocky, but with effort it yielded maize, oats, barley and potatoes, with some wheat and rye.

[4] In 1870, the small mill town of Harrisville voted to separate from Dublin, leaving the latter with only 455 residents during the 1880 census.

The highest point in Dublin is along Monadnock's northeastern ridge, where the elevation reaches 2,834 feet (864 m) above sea level at the town line.

The style in Dublin can be attributed to one Rufus Piper, who served as the town moderator and was a carpenter at the time.

In 1912, ʻAbdu'l-Bahá, the son and chosen successor of the Baháʼu'lláh, the Prophet-Founder of the Baháʼí Faith, visited Dublin for 23 days, from July 25 to August 16, on his journey through the United States to spread the Bahá’í teachings after his release from 40 years of imprisonment.

[12][13] Spending the most consecutive days of his journey in Dublin, he gave many talks ranging from gender equality, the immortality of the soul, industrial and economic justice, the elimination of racial prejudice, spiritual and material education, Biblical symbolism, theology, the coming together of people from the East and the West, and other Bahá’í principles.

Asked to speak at the local Unitarian church one Sunday, an event attracting some 300 people,[13] ‘Abdu’l‑Bahá spoke on the subject of spiritual education.

Howard Colby Ives, a Unitarian minister,[18] wrote of that day,What His subject was I do not recall, nor does a single word of His address remain with me.

His cream-colored robe; His white hair and beard; His radiant smile and courteous demeanor... And His voice!

Like a resonant bell of finest timbre; never loud but of such penetrating quality that the walls of the room seemed to vibrate with its music.

[19]‘Abdu’l‑Bahá spent time at the Dublin Inn, which has since been purchased and donated to the Bahá’í community as a space for gathering, prayer, meditation, and historic preservation.