500
Nothing has been more damaging to General Joseph Hooker's military reputation than this, from John Bigelowe's The Campaign of Chancellorsville "A couple of months later, when Hooker crossed the Rappahannock [actually, the Potomac] with the Army of the Potomac in the Campaign of Gettysburg he was asked by General Doubleday: 'Hooker, what was the matter with you at Chancellorsville? ... Hooker answered frankly ... 'Doubleday ... For once I lost confidence in Hooker'".
What is myth of the battle of Chancellorsville?