Since about 550 AD.
The ancestral Pueblo people are credited with starting Mesa Verde, with evidence of their settlements dating back to around 550 AD. They constructed the iconic cliff dwellings and pueblos in the area, showcasing their advanced architectural and agricultural skills.
Anywhere from 6 hours and 15 minutes to 7 hours and 45 minutes, depending on which way you go.
it has been standing up for 87 years
SInce both peoples are long gone, our best guess would be locally obtained or traded organic items. Wood, stone and leather.
the great wall has been standing for over 2500 years
Wrexham swimming baths has been standing since May 1970
A thousand years
The phrase (not sentence) 'long-standing army' is grammatically correct. It means 'an army that has been established for a long time.'
for 358 yrs
2 minutes
SINCE 438 bc
billion mounths