High Quality Content by WIKIPEDIA articles! The Levellers were a political movement during the English Civil Wars which emphasised popular sovereignty, extended suffrage, equality before the law, and religious tolerance, all of which were expressed in the manifesto "Agreement of the People". They came to prominence at the end of the First English Civil War and were most influential before the start of the Second Civil War. Leveller views and support were found in the populace of the City of London and in some regiments in the New Model Army.