Complex sentence: With the boom of the textile industry and the development of the railroad and telegraph system, women like Madame C. J. Walker took advantage of the time and was able to market her hair care products in a successful way, becoming the 1st African American female millionaire.
Split into simpler sentences: With the boom of the textile industry and the development of the railroad and telegraph system, women like Madame C. J. Walker took advantage of the changing times. She was able to market her hair care products in a successful way, becoming the 1st African American female millionaire.