The Khadija reference article from the English Wikipedia on 24-Jul-2004
(provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Khadija

People like you are child sponsors
Khadija was the first wife of the Prophet Muhammad and the first convert to Islam, the new religion he had begun to preach. She was approximately 15 years his senior when she proposed the idea of marriage. She supported him throughout his mission and such was his love for her that he took no other wife until after her death. The year of her death has been named the "Year of Grief", because of the devastation it caused the Prophet.