Answer: the historical context
Explanation: This may bias a viewer in 1770 due to the historical context at the time. Colonists refused to pay taxes and all of a sudden British soldiers show up in Boston. From their perspective, they think the soldiers are there to force colonists to pay taxes, which made a lot of them uneasy at the time. So when you read a news article about 5 colonists being shot dead at the hands of British Soldiers... that doesn’t paint them in a good light now does it?
