The document summarizes a series of bourgeois revolutions that occurred between 1820 and 1848. The revolutions of 1820-1830 in Spain, Portugal, Naples, Piedmont, some German states, and Greece succeeded in establishing liberal regimes, while revolutions in France and Belgium in 1830 were also successful. However, revolutions in 1831 in Poland did not succeed. The revolutions of 1848, also known as the Spring of Nations, saw further protests across Europe demanding liberal reforms and national independence. These revolutions were initially led by the bourgeoisie but began incorporating demands from the emerging proletariat class such as universal suffrage and social equality. However, the bourgeoisie moved to curb these more radical social reforms