Respuesta :
it was threw steel because he was one of the monopolies of the steel industry
Andrew Carnegie was a steel magnate.
He was a visionary who made his fortune in the nineteenth century in the period of railroad construction.
Initially Carnegie was a worker from a road company and commandeered to invest in business deals he understood, such as the roads and car manufacturers. He glimpsed how the iron bridges were better and so he began to invest heavily in the production of iron and thus made his fortune.