निम्नलिखित में से किसने बीसवीं शताब्दी को 'भयावह शताब्दी' (the dreadful century) के रूप में वर्णित किया था?

Eleanor Roosevelt played a pivotal role as the Chair of the UN Human Rights Commission in drafting which historical document?

Idi Amin was a military dictator of which African nation during the 1970s?

The famous 'Iron Curtain' speech (1946) is associated with which of the following leaders?