I do not have my first passport to list my first travel history for last ten years

[hosseinojani]

I received an ITA and I should fill the online forms. One of the items is to list my travel history for last ten years. Ten years ago I traveled abroad but I do not have my first passport to check the exact date. I can check the date of travel from my parents' passport but if I asked to claim my passport and visa, I won't be able to do that.
Would you please let me know what I should do accordingly?

 

[Angryguy]

when you receive the PPR theyll send you a letter where they write you have to provide all passports, and if you list a inaccurate travel history they will ban you for misrepresention.