Original: At first organised into its own dÃ partement, it was merged with Drenthe in 1798 to form Ouden IJssel, which was renamed Overijssel in 1801.
Simplified: At first organised into its own dÃ partement, it was merged with Drenthe in 1798 to form Ouden Ijssel, which was renamed Overijssel in 1801.