Simplify the following text for a Grade 11 native English-speaking person.
Original: The history of the town only dates back to April 15 , 2003 , when the town was formed from the merger of the municipalities of Neuendorf bei Wilster and Sachsenbande to the municipality of Bredensee .
Simplified: The town was made on April 15 , 2003 , when the municipalities of Neuendorf bei Wilster , Sachsenbande , and Bredensee were all joined together .