Stamp tax
This was required following the enactment of the Stamp Act by the British Parliament in 1765. The stamp tax was imposed on all American colonists and required them to pay a tax on every piece of printed paper used in the colonies
The Open Door policy—first initiated in 1899, with a follow-up missive in 1900—was significant in its attempt by the United States to establish an international protocol of equal privileges for all countries trading with China and to support China's territorial and administrative integrity.
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