PLZZZZZZZZZZZZZZZZZZZz help its due in 10 mins i will give brainliest

Answer:
1st quartile: 1920s / 6
Step-by-step explanation:
First find the median, which is 1950s / 10. There are 5 rows behind it.
The median of those previous 5 rows is 1920s / 6.