Characteristics of the times: Joan grew up in war-torn era, regardless of whether she heard God's instructions, but her body a sense of responsibility, there is defending the homeland and national spirit. So she is a national spirit together a great sense of national responsibility of women.
Features: She is very dedicated to science, she lived a simple life, she is neither the name nor seek, after all, the fame and fortune very lightly. She depended on a bold intuition, relying imagine working under extremely difficult circumstances enthusiasm and tenacity of the obtained results of the work made a great contribution to humanity.