1) The first car with air conditioning was released in 1939.

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

3) The global push for COVID-19 vaccination campaigns has been a significant focus, with the development and distribution of vaccines to combat the spread of the virus and protect public health.

4) The world's largest ocean, the Pacific Ocean, covers an area of approximately 63 million square miles.