Crito
The dialogue takes place in Socrates' prison cell, where he awaits execution. He is visited before dawn by his old friend Crito, who has made arrangements to smuggle Socrates out of prison to the safety of exile. Socrates seems quite willing to await his imminent execution, and so Crito presents as many arguments as he can in order to persuade Socrates to escape. On a practical level, Socrates' death will reflect badly on his friends--people will think they did nothing to try to save him. Also, Socrates should not worry about the risk or the financial cost to his friends; these they are willing to pay, and they have also arranged to find Socrates a pleasant life in exile. On a more ethical level, Crito presents two more pressing arguments: first, if he stayed, he would be aiding his enemies in wronging him unjustly, and would thus be acting unjustly himself; and second, that he would be abandoning his sons and leaving them without a father.
The Death of Socrates
There is some controversy as to the origins of the painting. Vidal states that "the younger of two sons commissioned David's "Death of Socrates" in 1786", but Bordes says that "the drawing for Socrates…bears the unexpected date of 1782." However, it is possible that the commission in 1786 was for a painting that David had already conceived as early as 1782, and Bordes does acknowledge that the date is an addition to the drawing. Regardless of when it was originally conceived, the painting was completed in 1787, in Paris.