Mably's recommendations were completed in two installments, the first in August 1770 and the second in July 1771. Generally, he called for more radical and substantial changes than Rousseau was to suggest; he was also able to finish his recommendations in a more timely fashion than Rousseau. It was not until 1772 that Rousseau completed his essay. By the time he finished, the First Partition of Poland had already occurred, on February 17, 1772. Russia, Prussia and Austria had invaded and occupied much of Poland.