•Support for the monarchy waned.
•A long war against Paraguay brought the
military into
politics, and state quarrels with the church drew them into the opposition.
•Planters turned away from slavery to
positivist ideas.
•The
Republican Party, formed in 1871, won wide support and a coup replaced the monarchy
by a republic
in 1889.
•However,
Social and political problems caused by modernization remained unresolved.