I do want to add a caveat to this.... I thought about it after awhile.

"First scientist..." as far as we know.

A lot of historical knowledge has been lost and destroyed. The library of Alexandria was destroyed way before this...

The works of Plato for example that we have are supposedly but a fraction of his actual works.

Then we have things like...
Antikythera Mechanism

Which make us get a glimpse of how many things from the past WE DON'T know. Many of these seem like they would take a scientific mind to achieve.

With book burnings, building destruction, councils meeting to decide the truth, and censoring those they decide not to keep... who actually was the first scientist is actually a huge mystery.

So I'd call him the "earliest currently known scientist" and he was a bad ass...

But there are so many mysterious things out there being discovered about the past.

I consider the loss of the library of Alexandria to potentially be one of the worst disasters in history.