Tamerlan, the older brother, was reportedly born in Dagestan, while his younger brother, Dzhokhar, was born in 1993—in Kyrgyzstan.
Dagestan, the biggest and most populated republic of the North Caucasus, is a place where insurgents often strike.
But in 1991, as the former Soviet Union broke apart, Chechnya and Dagestan declared their independence from Moscow.
Emails kept coming: somebody wrote of one more abduction case in Dagestan, where 824 people were killed last year.
The Vilayat Dagestan issued a quasi-denial in the wake of the attack.
Typically ethnic Chechens from Dagestan and from Chechnya are very different communities.
Tamerlan also had begun speaking about kafirs when he came to visit his family in Dagestan in January 2012.
Before she turned herself into a bomb, Aminat Saprykina was a professional actress and dancer in Dagestan.
Kurbanova had become a Salafi Muslim, making herself a member of a minority in Dagestan, albeit a rapidly growing one.
It was Peter the Great who, in 1722, invaded Dagestan and seized the greater part of this territory.