Before revision: Furthermore, as described by Dr. T. Mills Kelly, characteristics of historical thinking develop sourcing skills, the ability to construct and support an argument, and, "the ability to present the past in clear ways, whether in writing or in other media, saying what can be said and not saying what cannot."
After revision: Furthermore, as described by T. Mills Kelly, characteristics of historical thinking develop sourcing skills, the ability to construct and support an argument, and, "the ability to present the past in clear ways, whether in writing or in other media, saying what can be said and not saying what cannot."