I think it is close to 200 million years ago.
Hope it helps
B. both were total wars involved countries entire populations(apex)
<span>One of the advantage held by the north during the civil war is the North had superior military leaders. At the flare-up of the American Civil War, both the North and South trusted the contention would be over rapidly. In any case, focal points for both the Confederacy and the Union implied a delayed war between the states.</span>
persistent high inflation combined with high unemployment and stagnant demand in a country's economy.
