nox is only 20 years older than ruel and alibert?

I was just checking the timeline of the wakfu/dofus universe right here.
krosmoz.wikia.com/wiki/Timelin… i didn't expect a timeline this huge.
it seems that yugo was born in the year 969 while his adoptive father and the old man ruel are in the same age and they are both over 200 years old by now. alibert really doesn't look that old.he looks far younger than ruel.which is weird.