Which strategies or policies have governments used throughout history to unite their nations?

Choose all answers that are correct.

A. Accepting religious toleration

B. Introducing feudalism

C. Standardizing weights and measures

D. Unifying the legal code

Please answer as soon as possible... Thanks.

an effect of the steamboat's popularity was that people began building canals in the united states and europe. this was done to find another way to transport goods across the country and in that time, transportation using the river was very slow and dangerous. it depended entirely on manpower and the current of the river. that all changed in the late 1700's when steamboats were introduced. they soon revolutionized travel and trade through the river and dominated the waterways. eventually, other means of transportation took over from the steamboats, but there was a time that they the united states to expand to the west.

d. promised it other land

explanation:

an oligopoly is a term used to clarify the structure of a particular market, industry, or organization. a market is considered oligopolistic or amazingly focused when it is shared between a few companies.