The late 1900s would still only be like 1909 at the latest. You’ve got too much precision and called out the wrong decade. This floppy form factor was invented in 1981, peaked in popularity and was replaced by CDs by 2000. Spanning 2 decades in the late twentieth (20th) century, not the late 1900s. See the difference in the number of digits? That difference in the number of stated digits is significant.
The late 1900s would still only be like 1909 at the latest. You’ve got too much precision and called out the wrong decade. This floppy form factor was invented in 1981, peaked in popularity and was replaced by CDs by 2000. Spanning 2 decades in the late twentieth (20th) century, not the late 1900s. See the difference in the number of digits? That difference in the number of stated digits is significant.