1) The Olympic motto is "Citius, Altius, Fortius," which is Latin for "Faster, Higher, Stronger."

2) The Great Wall of China is not visible from space without aid, contrary to popular belief.

3) The potato is one of the world's most important staple crops and a dietary staple in many cultures. It originated in the Andean region of South America and was introduced to Europe in the 16th century. Potatoes are versatile and can be prepared in numerous ways, such as boiling, baking, frying, and mashing. They are a good source of carbohydrates, vitamins, and minerals, and are used in various dishes, including fries, mashed potatoes, and potato chips.

4) The push for racial and social justice has led to discussions and actions to address systemic racism, promote inclusivity, and challenge inequalities in various areas, including education, criminal justice, and economic opportunities.