On what source says SLT are natives and they has heritages before 1215 like in SLT page ? No sources but still a great page. Why is that ?
 I don't know, about which section (history,political reasons) you are talking about.
 I know the context clearly. About history, Parakramabahu_I_of_Polonnaruwa (1153 to 1186) who considered as greatest king in Sri Lanka sent military campaigns in India and in Myanmar. But he didn't find any significant separate Tamil power near Jaffna. Same story goes with Vijayabahu I of Polonnaruwa(ruled 1055–1110), the greatest warrior king in SL history. Two greatest warrior kings in Sri Lanka never found such a Tamil settlements in Jaffna before 12th century, but now people have found a big invisible settlements.
 Sri Lanka is multi-ethnic country. Others should think why all the ethnic groups ( Muslims, Burgers, Indian Tamils) lives withing Sinhalese and non of them live with SLT in northern province.
 If you think only me backing this page who are these people ?