Sindhi is known as Bab ul Islam, The Door to Islam, because Islam in Indian subcontinent was first introduced from Sindh. This was when Great young Muslim General Muhammad Bin Qasim conquered City of Deebal. He was sent from Arab to this area by his commanders.
Having said that however many say that Islam was actually first introduced long time ago then this event; when many companions (Sahaba) of Prophet Rasool Allah sallalaho alley hi wassalam came here. Many say that there are still few graves of companions of Rasool Allah salalahoalli wassalam in Sindh.
As a side note there are many Awliya e Karam in Sindh as well from all famous Turooqs. Most prominently from Tariqah Aliya Naqshbandiya Mujaddadiya. Sheikh Hadhrat Muhammad Tahir Bakhshi, being the most prominent leader among those.
Sindh is called babul Islam because the first Muslim invaders entered Indian Sub-continent from the coast of Sindh (present day Pakistan). The army was led by Umayyad general Mohammad Bin Qasim. 'Bab' is Arabic word for Door. 'Babul Islam' means the door through which Islam entered the region.
Al-Jamiatul Ahlia Darul Ulum Moinul Islam was created in 1896.
Sindh Madrasatul Islam was created in 1885.
The sindh is called b abul islam b'cz the door to islam , b'cz islam in indian sub contenent was 1st introduced 4rm sindh. This was great muslim general muhammad bin qasim conquered . As a side note there are many alwilya e karam in sindh.
because of the great efforts of muhammad bin qasim he started bringing islam from sindh when it was a part of india
There are actually 8 gates of heaven in Islam. i) Jannatul Mava ii) Darul Maqaam iii) Darul Salaam iv) Darul Khuld v) Jannat-ul-Adan vi) Jannat-ul-Naeem vii) Jannat-ul-Kasif viii) Jannat-ul-Firdous
Darul Sukun was created in 1969.
Darul Uloom Bury was created in 1973.
Darul Hadis Latifiah was created in 1978.
Darul 'Uloom Karachi was created in 1951.
Darul Uloom London was created in 1988.
Darul Ihsan University was created in 1989.