Answer:
A. During the Revolutionary War era, disease was common in Philadelphia.
and
D. British soldiers were called redcoats during the Revolution.
Step-by-step explanation:
The passage mentions that Grandfather did not run from a dockside miasma and compares it to the diseases that were common in their youth, particularly during the Revolutionary War era when Philadelphia was a hotbed of disease. The reference to "redcoats" also indicates that the passage is set during the Revolutionary War era when British soldiers were commonly referred to as such.
The two historical facts included in this passage are:
A. During the Revolutionary War era, disease was common in Philadelphia.
D. British soldiers were called redcoats during the Revolution.