1) Sloths only poop once a week, and when they do, they lose about one-third of their body weight.

2) The Berlin Conference in 1884-1885 divided Africa among European powers and set the stage for the colonization of the continent.

3) The word "guitar" contains three vowels: U, A, and I.

4) The development of the microprocessor by Intel in 1971 paved the way for the modern computer and led to the exponential growth of computing power.