Plz help me fast 8th grade history

When did paul zoll develop cardiac pacemaker

Brainliestttme : ) which of the following nations were among members of nato during the cold war? soviet union and west germany west germany and poland west germany and the united states france and east germany

Due to seriouse dogmatic differences between the orthodox church and the western christian churches, the orthodox xhurch is not in communication with the roman catholic and protestant communities