Why was the Union naval blockade of Confederate ports called the “Paper Blockade”?

Scott's Great Snake

The Union Blockade, nicknamed Scott's Great Snake, made the open harbors of California desirable to the Confederacy.

During the First World War, Britain intended to use its powerful navy to starve Germany and Austria-Hungary into submission. By maintaining a blockade of enemy ports it hoped to cut off supplies from the outside world.

a historian researching the immigration policies of the early 1900s would expect a source written today,rather than in 1910 to :

( a ) be more interested in objective data and statistics.

calvin taught his followers that human beings needed to follow strict rules to overcome their nature and do good. second choice