Complex sentence: Dr. Washington encouraged Rosenwald to address the poor state of African American education in the US, and he responded by providing funds for the construction of six small schools in rural Alabama, which were constructed and opened in 1913 and 1914, and overseen by Tuskegee.
Split into simpler sentences: Dr. Washington encouraged Rosenwald to address the poor state of African American education in the US. He responded by providing funds for the construction of six small schools in rural Alabama, which were constructed and opened in 1913 and 1914, and overseen by Tuskegee.