. >> reporter: teresa stinson was adopted and for the entirety of her life her past has been sealed. last month, a celebration both historic and humbling. teresa joined hundreds of ohio adoptees who for the first time can request their birth certificates single piece of paper that could bring them face to face with the parents who gave them life. >> how big of a day was it? >> probably one of the biggest dices of our lives. these were the first in line to obtain their original birth certificate. >> joining her sister by adoption vanessa knox. >> good morning. that will be $20. >> i feel like'm going to throw up. >> they were born in ohio and this law that was passed opened records for adoptees between 1964 and 1995. it affected 400,000 adoptees. >> reporter: ohio is the newest of only 12 states to open adoption records. teresa stinson and her sister grooe grew up in middle branch ohio north of canton. they say theirs was a happy childhood, but like so many adoptees they have long wondered what is their medical history? who are they? >> millions of questions, where did i come from? di