Legitimacy and Nonmarital Births: Legal Evolution and Global Trends
In traditional Western common law, legitimacy refers to the status of a child born to parents who are legally married to one another, or a child conceived before a legal divorce was finalized. Conversely, illegitimacy—historically referred to as bastardy—is the status of a child born outside of marriage. Such children have been described by various terms over time, including love children, natural children, or bastards.
While these distinctions once carried heavy legal and social weight, the global landscape has shifted. Legal frameworks have evolved to protect the rights of children regardless of their parents' marital status, and social norms have transitioned toward a broader acceptance of non-traditional family structures.
Key Facts
- Legal Shift: Many jurisdictions, including Scotland, have abolished the legal status of illegitimacy entirely.
- Global Trends: Nonmarital births are now the norm in several Latin American countries, with rates ranging from 55% to 74%.
- US Statistics: Approximately 40.5% of children in the United States were born to unmarried mothers in 2020.
- EU Data: As of 2018, nonmarital births represented 42% of all births across the 28 EU countries.
- Human Rights: The European Convention on the Legal Status of Children Born out of Wedlock (1978) mandates legal rights for children born outside marriage.
The Evolution of Legitimacy Laws
Legal Frameworks in the United Kingdom
The legal approach to legitimacy has varied significantly between England, Wales, and Scotland. In Scots law, a "natural son" or "natural daughter" could be legitimated if their parents married later, provided they were free to marry at the time of conception. The Legitimation (Scotland) Act 1968 expanded this, but the status of illegitimacy was eventually abolished in 2006 via the Law Reform (Parent and Child) (Scotland) Act 1986.
In England and Wales, the Legitimacy Act 1926 allowed for legitimation through subsequent marriage if the parents had not married others in the interim. The Legitimacy Act 1959 further extended these rights to include putative marriages—marriages that the parents believed were valid but were not. However, these acts did not alter the laws regarding succession to the British throne or peerage titles.
International Protections
The 1978 European Convention on the Legal Status of Children Born out of Wedlock marked a pivotal shift toward human rights. Ratified by the UK in 1981 and Ireland in 1988, the convention requires signatory nations to ensure that children born outside of marriage are granted specific legal rights.
![Magdalene laundries were institutions that existed from the 18th to the late 20th centuries, throughout Europe and North America, where "fallen women", including unmarried mothers, were detained. Photo: Magdalene laundry in Ireland, ca. early twentieth century.[98]](/images/6c/90/6c906e17ad80db390c6ed729f1a0e7f9628f4640ae5901abd0c955a62bcf584f.jpg)
Contemporary Trends in Nonmarital Births
North America
The United States has seen a dramatic increase in nonmarital births. In 2009, 41% of children were born to unmarried mothers, compared to just 5% fifty years prior. This trend is reflected across different demographics: in 2009, the rate was 73% for non-Hispanic black children, 53% for Hispanic children, and 29% for non-Hispanic white children. By 2020, the overall proportion remained similar at 40.5%.
In Canada, specifically Quebec, the majority of births since 1995 have occurred outside of marriage, reaching 63% by 2015.
![Percentage of births to unmarried women, selected countries, 1980 and 2007[1]](/images/f0/d3/f0d30c6d3de312af6459b20a0115edc8ec3e1d90d363efcdafbac925c9846041.png)
![Nonmarital birth rates by race in the United States from 1940 to 2014. Data are from the National Vital Statistics System Reports published by the CDC National Center for Health Statistics. Note: Before 1969, the rates for all minority groups were consolidated in the category of "Non-White."[50]](/images/67/38/67381e6a56a44507e718491653b9661baaf3a31267d7bd97a54ded599150039f.png)
Europe and Australia
In the European Union, nonmarital births accounted for 42% of all births in both 2014 and 2018. In some member states, this is the majority; for instance, France (60%), Bulgaria (59%), and Slovenia (58%) show high rates. Conversely, countries like Greece, Cyprus, and Poland report rates under 30%.
Australia has experienced a similar climb, with nonmarital births rising from 7% in 1971 to 36% in 2020. Regional variations exist, with the Northern Territory seeing the highest rate at 59%.
Latin America
Latin America currently holds the highest rates of nonmarital childbearing globally, with 55% to 74% of children born to unmarried parents. In countries like Colombia (74%), Paraguay (70%), and Peru (69%), children born outside of marriage have become the norm.
| Region/Country | Rate (%) | Year/Period |
|---|---|---|
| Colombia | 74% | Recent |
| Quebec, Canada | 63% | 2015 |
| France (EU) | 60% | 2018 |
| United States | 40.5% | 2020 |
| Australia | 36% | 2020 |
Sociological Drivers of Change
The rise in nonmarital births is often linked to a decline in traditional marriage rates. Across OECD countries, average marriage rates dropped from 8.1 per 1,000 people in 1970 to 5.0 in 2009. In regions with a history of strong religious control, such as Quebec, some researchers argue that high rates of unmarried cohabitation are a reaction against conservative social values and church doctrine.
Additionally, the increased ease of obtaining a divorce has reduced the number of children born to parents who are unable to marry because one party is still legally bound to a previous spouse.
Frequently Asked Questions
What is the difference between legitimacy and illegitimacy?
Legitimacy is the legal status of a child born to parents who are married to each other. Illegitimacy is the status of a child born to parents who are not legally married.
Does the status of illegitimacy still exist in Scotland?
No. The status of illegitimacy was abolished in Scotland through an amendment to the Law Reform (Parent and Child) (Scotland) Act 1986, which took effect in 2006.
Which region has the highest rate of nonmarital births?
Latin America has the highest rates in the world, with 55% to 74% of all children born to unmarried parents.
How has the US birth rate for unmarried mothers changed over time?
There has been a significant increase; nonmarital births rose from approximately 5% half a century ago to 40.5% in 2020.
What is a putative marriage?
A putative marriage is a marriage that one or both parties believe is legally valid, even though it is actually void or invalid due to a legal defect.