1807
1809
The Number 1808: Properties and Meanings
Prime Factors of 1808=2x2x2x2x113.
The maximal number of regions into which a plane can be divided by 43 circles=1808.
The Year 1808 AD
In the year 1808 AD the Chemical Element Calcium was first discovered by Humphry Davy.
In the year 1808 AD the Chemical Element Barium was first discovered by Humphry Davy.
In the year 1808 AD the Chemical Element Boron was first discovered by Joseph Louis Gay-Lussac & L.J. Thenard.
1807
1809