Answer:
It is estimated that by the early 16th century as much as 10% of Lisbon's population was of African descent. After the European discovery of the American continent, the demand for African labour gradually grew, as other sources of labour - both European and American - were found to be insufficient.
Answer:
Neil Armstrong landed on the moon in 1969 for the first time ever
The Harding's campaign promises of a return to "normalcy," supported the adoption of an isolationist policy and a series of measure that would return America to the way it was before the war; this idea appealed to voters who were affected by the tension and fighting during WW I and all the damages it had caused, and to those who wanted to return to the way of life before World War I, adopt an isolationist policy rather than getting involved in international treaties or organizations (such as the League of Nations) and to focus on domestic issues.
The Greeks developed direct democracy and allowed citizens to choose their leaders and participate in decision making.
