That huge gap in time is in order for some of the almost extinct clan to have enough members. This basically means that clans like Uzumaki, Senju and Uchiha is prosperous like in the past. If you want to be a descendant of the Uchiha clan, you can. But you cannot be Sasuke.
If you still would like to join. Apply to join our group. Remember. You can have a maximum of two characters. And only one character can possess the Sharingan. You cant have two characters possessing it. Read our rules thread. It is a must! We dont want issues in the future regarding your CS or anything else like that. Use our skeleton and post your character based on our setting and all.