You will be given a definition of a task first, then some input of the task.
This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.

On October 25, 1836, construction began on the Wilmington and Raleigh Railroad to connect the port city of Wilmington with the state capital of Raleigh. In 1849 the North Carolina Railroad was created by act of the legislature to extend that railroad west to Greensboro, High Point, and Charlotte. During the Civil War, the Wilmington-to-Raleigh stretch of the railroad would be vital to the Confederate war effort; supplies shipped into Wilmington would be moved by rail through Raleigh to the Confederate capital of Richmond, Virginia.
Output:
What was the name of the railroad that began construction in 1836?