The use of DNA testing for genealogical research became popular in the nineties with high profile cases being decided as a result of DNA use.
In certain cases, it was used to disprove relationships between people who had been long deceased. Cases like the last Czar of the Russian family and the Hemmings case both received considerable media attention.
This was the basis for genealogical research using DNA coming to the commercial market starting from the 2000s.
Today, there are numerous companies offering such services.
According to MyFamilyDNATest.com, there are 4 leading ancestry/family tree DNA testing companies in the mass market today:
- FamilyTreeDNA’s Family Finder