Hashirama was less then 60 years ago.

[Nerosmoke]

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So kazuku is 92 years old. and he fought Hashirama so that means fought Hashirama.

The 3rd Hokage is 60 years old and was trained by the 1st hokage.

so that means we have a solid time gap for where Hashirama and Madera era was.

 

[Dreckerplayer]

so..where's the math?Wheres the the stuff that brings everything together?I don't see it...

 

[HENI]

Show us math or evidence

 

[salamander uchiha]

Hiruzen was betwern 68-69

 

[Exaar]

Well we know tsunade met hashirama, I'd say she looks about 4 or so.

Spoiler

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This was most likely the last memory he has of tsunade, So assume he died when she was about 4 Years old or even younger, meaning in part 1 it was most likely only 45-50 years since his death.

Part 2 would've been 50+

Hiruzen was already hokage when she graduated the academy at the age of 6, so both Hashirama and tobirama had died extremely close to each other.
Meaning hashirama died between what ever age tsunade was in his flash back and her being 6 years old.

 

[Rikudou Tobi]

Yeah he was 80+ to 90 but that era was weak.
But I do want to see the Buddha kanon vs. Sun wukong in their prime though

 

[MightGai]

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Manga. Read it, learn it, treasure it close to your heart.

 

[Tyrance sasuke]

Hashirama was 30 years old at best. He looks very young in the reanimation. He has spiritual beings in his arsenal like Madara has the Susanoo and Naraka has the king of hell.