The close connection between calls for religious revival and campaigns for social reform in the 1830´s and 1840´s was the movement known as Second Great Awakening in the 1830´s which brought all the revivals; this served as one of the basis for the Reform Movement of the 1840´s; which had great impact on the American Labor Movement and Child Labor reform.
The correct answer to this open question is the following.
The close connection between calls for religious revival and campaigns for social reform in the 1830s and 1840s is the religious movement called the Second Great Awakening that started in the United States in 1790 and ended approximately in 1840.
Basically impulsed by protestant religious members of the Methodist and Baptist congregations, the Second Great Awakening. As these congregations were preaching about the second coming of Jesus, they believe that they had to emulate the life and example of Jesus of Nazareth in order to get salvation. These concepts inspired people who participated in social reforms of the 1830s and 1840s.
