Nominating conventions allowed for much more input.

political convention held every four years in the United States by most of the political parties

Explanation:

not to sure thinking it would be a hope this

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.