Select the battles that took place before the declaration of independence was adopted.

battles of lexington and concord
siege of boston
battle of yorktown
battle of bunker hill
battle of trenton

The answer is the siege of Boston, the battles of Lexington and concord, and the battle of bunker hill :)

yellow fever and other tropical diseases

the hyksos invasion. the hyksos were able to attack egypt successfully because of their skills in using bronze weapons, composite bows and the use of the horse and chariot during the invasion. although the egyptians depict a barbarian-type overthrow, the truth is the seizure was likely a relatively peaceful one.