Sugar trade 459 Slavery 132 Colonies 97 History 88 Economic conditions 59 Sugar 57 Commerce 54 更多 ... Slave trade 54 Tariff on sugar 45 Taxation 26 Rum 25 Tariff 24 Boycotts 22 Economic aspects 22 Sugar workers 18 Commercial policy 17 Sugar growing 17 Emancipation 16 Slaves 16 Social conditions 16 Plantations 13 Antislavery movements 12 Manufacture and refining 12 Politics and government 12 Sugarcane industry 12 Administration 11 Sugar laws and legislation 11 Speeches, addresses, etc., English 10 Economic policy 9 Political aspects 9 少 ...