The sons of lords began training for knighthood at the age of 7. By 15 they became squires. A squire was assigned as an apprentice to a knight. He followed the knight around and assisted him in his duties. When a squire had successfully proven himself in battle, he would be knighted in an elaborate ceremony.
Old age lives minutes slowly, hours quickly; childhood chews hours and swallows minutes.
Malcolm De Chazal
Napoleon constructed his battle plans in a sandbox.