Many Irish people were also transported to the island of Montserrat, to work as indentured servants, exiled prisoners or slaves. Unlike African chattel slaves, the majority of Irish labourers who were sent to Montserrat did so by personal choice. Some were Irish Confederate troops exiled by the English Parliamentarian Oliver Cromwell following the Irish Confederate Wars. The large Irish population attempted a rebellion on 17 March 1768. To this day, the Island celebrates St. Patrick's Day as a public holiday to commemorate the event. People of Irish descent also feature strongly in Latin America, especially in Argentina and important minorities in Brazil, Chile, and Mexico. In 1995, President Mary Robinson reached out to the "70 million people worldwide who can claim Irish descent". Today the diaspora is believed to contain an estimated 80 million people.