what did the colonists do that made the British Parliament take their protest seriously and make it official

The colonists started to resist by boycotting, or not buying, British goods. In 1773 some colonists in Boston, Massachusetts demonstrated their frustration by dressing up like Indians, sneaking onto ships in the harbor, and dumping imported tea into the water. This was called the Boston Tea Party.

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industry had made the u.s. the richest nation in the world at this time. the second industrial revolution caused growth in industry and transportation, which allowed increased trade between nations.