The 1800s astronomical drawings are very detailed and accurate. I do wonder how beautiful are the night skies in the last 100-200 years. Today's light pollution made it hard for us to appreciate the beauty of the night sky.
When I started programming, the first mistake that I have encountered is that I did ignore the spacing rules in Python, thus creating errors even though the code was correct.
But some are pulling strings like connections for them to get the job that they want. It is quite rampant, and it even gives the job to those who are not quite competent enough for that certain position.
It's crazy how low the percentage of women chess grandmasters and black chess grandmasters is. I wonder how many grandmasters are aged below 15 years old. It's amazing how players play against each other despite the age difference.