The opium wars had what impact on china

it brought the economy down and brought mass kayos.

the tallest building in the western hemisphere and the sixth tallest building in the world

ww1 weapons: tank. tanks were used for the first time in the first world war at the battle of the somme. they were developed to cope with the conditions on the western front. the first tank was called 'little willie' and needed a crew of 3.