Aristotle ji,
Guru Fateh.
Thanks for the thoughtful find with your inquisitive questions which I am sure will benefit all of us in stuffing our spiritual coffers.
There was a thread here on Prophecy in Sikhi if I am not mistaken, started by Jasbir Singh Kaleka. It turned into a very interesting debate about Guru Nanak being a Prophet or not. I wish I knew the title of the thread.
Just for the sake of argument, if Sikhi believed in Prophets and their prophecies, then we would have 11 prophets including the Sri Guru Granth Sahib Ji and also we would add all the Bhagats whose poetry became Gurbani. Prophets are nothing but snake oil salesmen as was discussed in the thread.
Sikhi is idea based as we all know it. If Guru Nanak wanted to start another religion based on himself as a deity or the only spokesperson of Ik Ong Kaar as many other religions did including Islam, whose followers were marauding people, then he would have been murdered, with the result, no Sikhi.
Guru Nanak was a visionary. He brought a new thought process at the messy table of the time. That is why Sikhi flourished sans baseless rituals and other things practiced by all other religions.
This is the reason; Sri Guru Granth Sahib Ji is filled with one word more than any other- Mann. Guru Nanak went to the root cause. All religions discard Mann, hence the birth of belief system based on blind faith for the blind sheep where Mann in not needed or used. This is the deliberate effort by these dogmatic religions who have created fear based Hell and other things for people not to think with the help of Mann.
Guru Nanak took the opposite path and the only right one in my opinion. Once one starts developing a thought process, then sky is not the limit which makes us Sikhs, the fortunate ones.
I have no idea why Babavani is scattered in the Sri Guru Granth Sahib Ji, nor do I want to indulge in this-why, because of it. For me, Sri Guru Granth Sahib Ji is the genome of the brain from the angles of our Mann. Hence, different thoughts which are registered in different parts of the brain are expressed in different sections of the Sri Guru Granth Sahib Ji.
Babarvani has the historical facts with the relative dates as you have shown in the Shabad. We all know the carnage Babar and his fiendish followers created in India.
In my opinion, Babarvani, Sidhgosht and others were Cris de Coeur by Guru Nanak to shake the people of the time up so that they could become brave enough to discard the mechanical, useless rituals and would start using their Mann to develop a Nibhau, Nirvair thought process.
As Sikhi has no prophets, according to my understanding, the verse-'hor bhi uthsi mard ka cheyla- is the Cri de Coeur to all of us which still stands every time we do Nitnem or study the page of Sri Guru Granth Sahib Ji randomly so that we can continue developing our Manns in a Nirbhau, Nirvair manner because Sikhi idea created by Guru Nanak does not stop in time but expands with it.
Thanks & regards
Tejwant Singh