What point was the songwriter trying to make with "i built a railroad" and "i built a tower"?

What is the term for a short statement about history that has not been yet been proved

Brainliesttt !me : ) describe the responses to terrorism in the united states.

Mee why did the government control the news and information americans received about the war? to eliminate propaganda that unfairly targeted immigrants to influence public opinion in support of the war effort to inform americans about troop movements and major battles