4,000-year-old wooden wagon - photo

[NortonDommi]

That is absolutely amazing! In only 63 years since the creation of the world Man was already building awesome stuff!
The way the hoops are made they would be strong for their weight much like modern roof trusses and floor beams and quicker to make than steam bending for a one-off.
There is a lot going on with this construction. I'm thinking that trunnels were used in he making n which case it is no wonder it is still intact.