Blood only becomes najis/makes us spiritually impure if it exits the body. Same thing with how we become impure and our wudhu is made batil if we pass gas or use the restroom.  Its impermissable for us to pray if we have blood on our clothing, and there are special rules we have to follow in the event that we are injured and bandaged in an area that we need to wash duri g wudhu, so the issue of blood becoming najis is when it exits the body, not while it is in us.  W/s

Yeah but their slaves still reached the slave markets of the Muslim countries. Even in the case of European slave trading, there were always middle men as well, it wasn't the case that the British or the Spanish monarchies were directly responsible for capturing the slaves. Unless I suppose they conquered a country and enslaved the natives as the Belgians did in the Congo.

Ibn Babuwayh said, ‘Tameem Bin Abdullah Bin Tameem al Qarshy narrated to us, from his father, from Ahmad Bin Ali Al Ansary, from Abu Al Salt Abdul Salaam Bin Salih Al Harwy who said,  ‘Al-Mamoun (L.a) asked Abu Al-Hassan Al-Reza (عليه السلام) about the Words of Allah عزّ وجلّ Mighty and  Majestic:  And He is the One Who Created the skies and the earth in six days and His Throne was upon the water, in order to Try you, which one of you is better in deeds [11:7].   He (عليه السلام) said: ‘Surely Allah عزّ وجلّ Blessed and Exalted Created the Throne, and the water, and the Angels before He عزّ وجلّ Created the skies and the earth. And the Angels used to infer by themselves, and by the Throne, and by the water, to Allah عزّ وجلّ Mighty and Majestic.Then He عزّ وجلّ Made His Throne to be upon the water, in order to manifest His Power by that to the Angels, so that they would come to know that He عزّ وجلّ has Power over everything. Then He عزّ وجلّ Raised the Throne by His Power and Transferred it, so He عزّ وجلّ Made it to be above the seventh sky.   And He Created the skies and the earth in six days [11:7],   and He عزّ وجلّ Took Control upon  His Throne. And He عزّ وجلّ has all the Power to Create it in the blink of an eye, but the Mighty and Majestic Created it in six days, in order to Manifest to the Angels what He عزّ وجلّ Created from it, a thing after a thing. So they were evidenced by the occurrence of what occurred, to Allah عزّ وجلّ the Exalted, time and again.   And Allah عزّ وجلّ did not Create the Throne for any need of His, because He عزّ وجلّ is above any need of the Throne, and from all of what He عزّ وجلّ Created. He عزّ وجلّ cannot be described to be upon the Throne, because He عزّ وجلّ has no physical form. Elevated is Allah عزّ وجلّ from the attributes of His creatures, Higher and Greater.   And as for His Words: in order to Try you, which one of you is better in deeds [11:7],  so He عزّ وجلّ, the Mighty and Majestic Created His creatures in order to Test them by the effort of being obedient to Him, and worship of Him, not upon the way of the examination and the experience, because He عزّ وجلّ never ceased to be All-Knowing of everything’.  So Al-Mamoun (L.a) said,  ‘You (عليه السلام) have relieved me–O Abu Al-Hassan (عليه السلام)–may Allah عزّ وجلّ Relieve you'. Ref- Uyoun Akhbar Al Riza (عليه السلام) Vol. 1  134/33.   Then Allah Might and Majestic said: O My angles! O Residents of My Heavens, verily, I have not created the erected Sky, the stretched earth, the illuminated moon, the bright sun, the rotating planets, the flowing seas and the sailing ships, except for the love of these Five underneath the cloak"   Extract from Hadeeth e Kisa.

The one million figure has been mentionned to br abused, but again these people were litteral pirates, so them having slavery is not suprising, pirates are litterally terrorists in waters.

First 4 minutes of video C0VlD-19 has changed since the last half year. Then another 4 minutes with virologists speaking. https://www.dw.com/en/coronavirus-gene-mutation-how-afraid-shuld-we-be/av-54132538#spark_wn=1