Isobars are atoms that have same atomic mass but different atomic number. They have different atomic numbers because they have different numbers of protons. They have the same atomic mass because they have just enough neutrons to make the same total of nucleons. Isobars occur at different places in the Periodic Table.
The Holocaust (also called Ha-Shoah in Hebrew) refers to the period from January 30, 1933 - when Adolf Hitler became chancellor of Germany - to May 8, 1945, when the war in Europe officially ended.
Best Answer: When WWI Started and Ended Simply put, World War One began in the year 1914 and ended in 1918. The initial catalyst was in June 1914: the assassination of Austrian Archduke Franz Ferdinand in Sarajevo, Serbia. The Austro-Hungarian empire wanted to extradite the killer, but Serbia refused.