Is there anything that particularly spans eight years-for example, from 1897 to 1904?

For example, 1697 to 1704.

Methods: First find a year that is not a leap year, then subtract 3 from this year and add 4, so that two years will be separated by 8 years to be a leap year.

For example, 1500 is not a leap year, 1500-3= 1497, 1500+4= 1504, then from 1497 to/.