original: History Vaihingen may date back as far as 799 a. d., but the documents are not clear.
simplifications: History Vaihingen may date back as far as 799 a. d., Vaihingen may date as old as 799 a. d. Documents are unclear if Vaihingen dates back to 799 a. d.. Vaihingen may date back to 799 a. d. However, the documents are unclear. The history of Vaihingen may have begun as early as 799 a.d.  However, the documents are hard to understand. Vaihingen may date back as far as 799 a. d. The documents are not clear. Vaihingen may date to 799 a. d., but the documents are not clear. Vaihingen may date back as far as 799 AD. The documents are not clear enough to be sure. Records aren't clear, but Vaihingen dates back as far as 799 A.D. Vaihingen may date back as far as 799 a.d.