Answer:
They most likely would have sent messages like if they won or lost a battle. The modern Athens Marathon commemorates the run of a messenger from a battlefield at the site of the town of Marathon, Greece, to Athens in 490 B.C. Legend has it that a messenger delivered the momentous message “Niki!” (“victory”), then collapsed and died. Maybe messages of where they should meet for battle, so if the figure out the enemy is attacking 50 miles west of where they were they could message their allies to meet there instead.
Explanation:
Well, from looking at the chart, it seems that there's a huge loss of life on the "winning" side. I believe the people of those countries must've felt emotionally and economically defeated. Considering the great amount of lives lost during the war, I'd say it would effect the society emotionally and there'd be fewer people around. And during wars countries usually use lots of money and weaponry to fund the cause, so those nations must've been in a huge economic crisis once the war ended. <span />
Biotic is the correct answer
Economists have frequently hypothesized that industrialization and its correlates played a major role in inducing fertility decline in the United States after 1850. ... This leaves changes in the cost of raising children as the likely driver of the industrialization result.
