Brother Wake up Pak (Inshallah Pak will wake up, sooner is better, God willing).
1. Aal e Muhammad as sect? Heard first time. Does any group claims that? Do let me know if they do. How strange. Aal e Muhammad is lineage, just like Aal e Saud, Aal e Maktoom, Aal e Nahiyan. All Arab tribes call us Aal e Muhammad and respect accordingly. They are our brothers.
2. Jafri? If you are from race of Jafar As Sadiq AS, then off course you are Aal e Muhammad. Like in Yemen we are called Aal e Muhammad, as we (my particular race) are from race of Zayd ibn Ali ibn Hussayn ibn Ali ibn Abi Talib wa Fatima Az-Zahra AS binte Muhammad SAWW. Sorry if I couldn't understand your question. Apologies, if I did.
3. History. Yes. I quoted a historical event, according to the question asked. Our family and tribal history is complete and most ancient, documented on parchments, scrolls, all original we have, known as Aasar e Bani Hashim. Each incident is a must to be verified by at least 2 shahedeen (witnesses), one of them must directly belong to Bani Hashim and must have been present at the moment. It is more authentic than Ahadith collection which have normally only one Ravi. A single chain. Quran recommends 2 witnesses (present at the same time).
Arabs, as u know, are famous for their memory, recording of their ancestry, family trees, histories, hence marvelous books like Ansab ul Ashraf, Tazkira tul Ashraf etc.
This is just an introductory thread, so friends here asking and I am tying to answer accordingly. But great talking to you and such precious friends. Returning to Siasat.pk will give me more better understanding of present situations and thought models presently in Pakistan. A lot to learn and catch up ! Stay blessed my brother.