Donation of Inherited Goods

Hello!  My father passed away in late 2022 and I donated a LOT of his items to Goodwill and other charitable organizations throughout 2023.  TurboTax is asking me for the PURCHASE VALUE (I can estimate but I certainly do not know) and it is also asking me if I OWNED THE GOODS FOR OVER A YEAR.  Why does this matter?  Can someone help me out?  Thanks!