I'm not 100% sure but it could be: Voluntary Exchange takes place between buyers and sellers:
(btw I copied and pasted from the question so I didn't take any content :D)
Date: June 21, 1861
Commander (Confederate):
P. G. T. Beauregard
Thomas "Stonewall" Jackson
<span>Joseph E. Johnston
Commander (Union):
Winfield Scott
Irvin McDowell
Robert Patterson
Amount of people killed & wounded: ~4500
State that it was fought in: North of Manassas, Virginia
hope this helps</span>
settlement of a region
growth of agriculture
establishment of government
expansion of territory
a period of exploration
the birth of industry
age of maturity
stagnation and decline
