Final answer:
More Liberum, also known as Freedom of the Seas, was published by William Lloyd Garrison in The Liberator, an abolitionist newspaper.
Step-by-step explanation:
More Liberum, also known as Freedom of the Seas, was published by William Lloyd Garrison in his abolitionist newspaper The Liberator. The Liberator was a prominent publication in the United States during the abolitionist movement in the 19th century.