The outbreaks in all cases are attributed to, increased taxation.
Spreading their advanced religious views, these settlers were partly responsible for two serious outbreaks of disorder, At Aix-laChapelle the Protestants, not being allowed freedom of worship, took possession of the city in 1581.
No violent constitutional change took place after 1870, though there have been spasmodic outbreaks of revolution, as in 1881, in 1894, in 1898, in December 1904 - when a somewhat serious civil war was ended by the peace of Pilcomayo - in July 1908 and in September 1909.
During the Mutiny of 1857, Allahabad became the scene of one of the most serious outbreaks and massacres which occurred in the North-Western Provinces.
It was captured and plundered by the Brazilians in 1869, and has been the theatre of several revolutionary outbreaks since then, one of which (1905) resulted in a blockade of several months' duration.