A stone keep, a type of fortified structure from the medieval period, can last for centuries if properly maintained. Many stone keeps have survived for hundreds of years, with some still standing today. Their durability depends on factors such as the quality of materials, construction techniques, and environmental conditions. Regular maintenance and restoration can significantly extend their lifespan.
Most stone bridges last for over a couple of centuries.
Not many people live long in the stone age. There were not doctors back in the stone age.
She kept her last name after marriage.
2.5 million years
about 700 years
12,000 years
As long as you keep doing it.
as long as you keep it.
they take too long too make
as long as you can keep it
How ever long you keep it there, you have to get rid of it you self!
It took up to 29 years to build up because of the stone that they had to find