Here are the answers to my earlier questions.
The first question concerns today, March 4th, while the others follow on with a common theme.

Image Wikimedia Commons
One
On this day in 1837, Chicago was incorporated as a city. To the nearest thousand, what was the population?
Answer: 4,000.
Chicago’s population surged dramatically during its early years. At incorporation, the city boasted around 4,000 residents according to the Chicago Historical Society. By 1860, it had grown to 109,000 and reached 1 million by 1890.
Two
To the nearest million, what was the population of England at the beginning of Elizabeth I’s reign in 1558?
Answer: 3 million
During Elizabethan England, the population grew from approximately 3.2 million in 1558 to about 4.1 million by 1603, marking an increase of over 25%. This rapid growth was significant for the time and contributed to various social changes.
Three
In what decade did the world’s population first reach the 3 billion mark?
Answer: 1960s
The world’s population reached three billion in 1960.
- 1 Billion reached in 1804
- 2 Billion: 1930
- 3 Billion: 1960
— Population milestones
Four
Which country has the fourth highest population with a current figure exceeding 287 million?
Answer: Indonesia
Indonesia, which has a population of 287,230,819, has the fourth highest population after India (1.47 billion), China (1.41 billion), and the USA (348.5 million).
Five
What two continents have the highest population?
Answer: Asia and Africa.
Asia’s population is 4,863,327,397 and Africa’s is 1,584,985,259.
The figures quoted are from various sources including Encyclopædia Britannica, Chicago Historical Society and Worldometer. The figures were sourced yesterday, 3 March 2026.
