20 Points. (Will mark as brainiest for a good answer.)

How has the discovery of 5,300-year-old Ötzi, the Iceman, helped scientists in their knowledge?

Ötzi, the Iceman, was as old as previously thought.

Ötzi, the Iceman, existed at a time when the climate was warm.

Precise knowledge about his food and clothing is available.

Humans from that period are exactly same as modern humans.