Answer:
-WW1 changed the economical balance of the world, making the U.S. the leading industrial power while leaving European countries in dept. America had stabilized its position as a global power.
-WW1 changed how people fight wars, both in tactics (it was the first "trench" war) and with new weapons.
-Woman generally gained more economic and social freedom/equality because they had to run businesses (that previously only men could run) while men were at war.
-The League of Nations was founded.
-WW1 largely marked the end of colonialism.
