The Second Peace of Thorn (1466) split Prussia into the western Royal Prussia, a province of Poland, and the eastern part, from 1525 called the Duchy of Prussia, a fief of the Crown of Poland up to 1657.
You can check to see if your computer supports Bluetooth: 1  Look for the Bluetooth icon in the menu bar. 2  Choose System Preferences from the Apple menu, then click Bluetooth. 3  From the Apple menu, choose About this Mac, then click More Info.
The Keyboard Elite for Bluetooth and the Wireless Optical Desktop for Bluetooth do not have First Connect buttons on their transceivers. For more information about pairing these keyboards to your computer, see the Bluetooth Connection Guide or the documentation included with your Bluetooth program.