The accumulation of all powers, legislative, executive, and judiciary, in the same hands… may justly be called the very definition of tyranny.

porter is writing economic history because he is focusing on the cost of developing vaccines.

the real answer is b

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.