Family and Youth Concern has produced A Brief History of Marriage as a free online resource for schools. Many adults would find it a useful overview. Here is the summary from Family and Youth Concern:
In twelve short chapters, experienced educator John de Waal traces the history of marriage from the ancient world of Egypt, Greece and Rome down to the present day. Along the way, he interacts with the disciplines of literature, theology, philosophy, psychology, politics and sociology in clear and accessible prose.I have just read this over lunch and warmly recommend it. Even if schools don't take it up, I am sure it would be a great help to homeschooling families and to other parents who want their children have some reliable information about marriage.
Wide-ranging and varied in style, A Brief History of Marriage includes references to marriage customs, laws and policies through the ages, alongside extracts from love letters and quaint and homely tips given to husbands and wives in bygone days.
Attractively produced and well-illustrated, this online resource is suitable for use in PSHE, history or Religious Education classes. Each chapter concludes with several questions which will stimulate further thought and provide a basis for classroom discussion.
Links: Flyer and whole book (1.67 Mb pdf, 91 pages)