The Abyssinian Meeting House is a historic church building at 73–75 Newbury Street, in the Munjoy Hill neighborhood of Portland, Maine.

Christopher Christian Manuel, his brother-in-law Reuben Ruby, Caleb Jonson, Clement Thomson, Job L. Wentworth, and John Siggs published a letter on September 19, 1826, in the Eastern Argus newspaper which condemned the Second Congregational Church in Portland for treating non-white members as second-class citizens.

At the time, church pews were segregated and African-Americans were designated balcony seating or discouraged from attending services at all.

Throughout the Northeast, he enjoyed a reputation as an unwavering spokesman against slavery and was a major participant in forming the Maine Anti-Slavery Society in 1834.

In 1836, Ruby brought a suit against the Society for non-payment on the mortgage he held and improvements he had made to the building.

As a known Underground Railroad agent, he used the building to host and organize anti-slavery speakers, Negro conventions and testimonies from runaway slaves.

By 1845, he took on the role of principal of a segregated school for black children where it saw great improvements, including the addition of music education.

Unearthed were 19th century toys, slate pencils, an inkwell, marbles, dishes, and bits of glass.

[15] During restoration efforts, a clay pipe broke in the basement and a steady stream began to run.

[17] Later excavation revealed that the owners of the swampy property filtered the encroaching through an uncovered system of sand boxes and piped it to the Grand Trunk Railroad.

[18] In September 2012, Greater Portland Landmarks named the Abyssianian as one of seven historic sites in peril due to lack of restoration funding.