 Borba also contains about 60% of the Acari National Park created by president Dilma Rousseff in 2016 in the last week before her provisional removal from office.Founded in 1728 as the Jesuit mission Aldea Trocano by Portuguese Padre João Sampaio.In 1755, it became the first "vila" (Portuguese town) in what was then the new captaincy of Rio Negro, named Borba.