Jean-Jacques Rousseau: Background Information . Jean-Jacques Rousseau was born on June 28th, 1712, in Geneva, Switzerland. Rousseau was raised by his aunt and uncle, after he was abandoned by his father at the age of ten. When Rousseau was older he wrote several books on political issues. His most famous book was The Social Contract. A social contract is an agreement for mutual benefit between an individual or group and the government or community as a whole. .