He mentioned Nigeria, in reference to the ancient kingdom located in that region, Nigeria is younger then Pakistan as a nation state. He should have mentioned Pakistan, which is the centre of the Indus Valley Civilisation, and the place he was discussing Mohenjo daro is actually in Pakistan.
All nation states inherit the historical heritage of lands they occupy, we are far too timid in claiming and fighting for our heritage.
And, why are they all black lol, surely they could have found few brown actors.
Lastly, with no sign of war and weapons, it shows, we are historically a pacifist nation. maybe its time to change that approach, we have seen what has happened to our ancestors, lets not repeat the same mistakes.
Having developed nuclear weapons, it seems, we have learnt some lessons.