You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
North_Carolina

Context:
Democrats were elected to the legislature and governor's office, but the Populists attracted voters displeased with them. In 1896 a biracial, Populist-Republican Fusionist coalition gained the governor's office. The Democrats regained control of the legislature in 1896 and passed laws to impose Jim Crow and racial segregation of public facilities. Voters of North Carolina's 2nd congressional district elected a total of four African-American congressmen through these years of the late 19th century.

Question:
In the 19th century, how many african american congressmen were elected?

four