The second estate of French society was made up of the nobility. These nobles lived on manors which they had inherited. The second estate consisted of about 2% of the total population who owned about 25% of the total land in France.
These nobles collected dues and rent from the peasants who lived on their lands. This endless source of income allowed them to live a lavish lifestyle.
To know that we know what we know, and to know that we do not know what we do not know, that is true knowledge.
James Cook was the first person to cross the Antarctic Circle in 1773.