<human>: Does the sentence "In his 1767 An Essay on the History of Civil Society, Ferguson uses the four stages of progress, a theory that was very popular in Scotland at the time, to explain how humans advance from a hunting and gathering society to a commercial and civil society without "signing" a social contract." answer the question "In what year did Ferguson publish An Essay on the History of Civil Society?"

OPTIONS:
- yes
- no
<bot>: yes