<Li> Fuente del Rodeo </Li> <Li> Cabeza de Las Marías </Li> <P> The Dominican Independence War gave the Dominican Republic autonomy from Haiti on February 27, 1844 . Before the war, the island of Hispaniola had been united under the Haitian government for a period of 22 years when the newly independent nation, then known as the Republic of Spanish Haiti, was invaded by Haiti in 1822 . Previously known as the Captaincy General of Santo Domingo, the criollo class within the country overthrew the Spanish crown in 1821 before unifying with Haiti a year later . </P> <P> At the time Haiti had been more economically and militarily powerful and had a population 8 to 10 times larger than the former Spanish colony, having been the richest colony in the western hemisphere before the Haitian Revolution . Dominican military officers agreed to merge the newly independent nation with Haiti, as they sought for political stability under the Haitian president Jean - Pierre Boyer, and were attracted to Haiti's perceived wealth and power at the time . However, due to the Haitian government's mismanagement, heavy military disputes, and an economic crisis the Haitian government became increasingly unpopular . A conspiracy of Dominicans in Santo Domingo called La Trinitaria hastened the end of the Haitian occupation . </P>

When did dominican republic gain independence from spain