Depending on the form of slavery (domestic vs. military for example), conversion to Islam could force the master to free the slave. Military slaves were not permitted to be manumitted based on conversion, while domestic and agricultural slaves could be. However, such rules of manumission were rarely enforced and conversion typically meant manumission only for the not-as-yet born children of the converted slave.
Anybody who accepts Islam (a slave or a free man) is welcomed by the Muslims. He becomes a respectable member of Muslim society.
Hard to say, but it happened in Islamic countries in the 9th century.
in which parts of the world are there no islamic countries?
The Islamic Revival happened in the early 1979's. During this time, there was work done to bring Islam back to the Islamic nations. Many converted to the Islam religion during this time and because of that, the attendance at the Hajj and the pilgrimage to Mecca rose.
By forming Islamic armies, conquering non-Islamic countries, and making them into Islamic countries. Simple.
in which parts of the world are there no islamic countries?
If you mean, where Islam is not practised in toto, in letter and spirit, then most of the Islamic countries are not following Islam.
no, she had a travel to Islamic country Pakistan and there weard Islamic Hijab and its photo was in internet and media and people thought she has converted to Islam according her Islamic cloths.
Islamic Khilafah. but real Islamic Khilafah never happened in history and people do not know it.what happened in Arabic emperores was not real Islamic Khilafah.
The most populated Islamic countries in Asia are Indonesia, Pakistan, and Bangladesh.
Islamic insurgency in the Philippines happened in 1969.
Islamic uprising in Syria happened in 1978.
I am not sure about the exact count, but many Islamic countries use the Arabic language.