Using the photos from good housekeeping magazines from the 1940s and 1950s as sources of data to better understand changes in home design is an example of which type of research method?

Historical method is type of research, it allows the researchers to see and explore time periods of the history. Diares,paintings, and newspapers as sources of historical data.Historical method is techniques by which the researches use this sources and other evidence, to research and then to write data histories in form of accounts of the past.

in 1862, president lincoln's emancipation proclamation opened the door for african americans to enlist in the union army. although many had wanted to join the war effort earlier, they were prohibited from enlisting by a federal law dating back to 1792.

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