first the holy Roman Empire was founded in 800,then the Holy Roman Empire collapsed and yes,i will not say all of them,then the Confederation Of The Rhine formed,also Prussia. then,the Prussian-Franco War happened.Prussia won the war.then the German Empire Formed,everything was fine until the assassination of Franz Ferdinand in June 28,1914,and the German empire invaded the Russian Empire,Turning into the Weinar Republic,Weinar Republic had an low ass economy,while Adolf Hitler came.Hitler changed the Country name to "Nazi Germany" and the flag was the German empire flag in an different format,it was until years later Nazi Germany changed its flag. the flag was an red background with an white circle in it,with an swastika more known as nazi,the Nazi Germany invaded Austria,then Nazi Germany And The USSR invaded poland,when poland was invaded denmark and norway got invaded by the Nazis,also Belgium,Luxembourg, and Netherlands.The Nazis Invaded France and the Axis invaded Yugoslavia and The Nazis invaded USSR but USSR invaded the Nazis,also The UK and the United States of America then Adolf Hitler died,which was an big mistake for the country,leading to The Nazis Collapse then Allied Occopied Germany Split into East Germany and West Germany,The East was Communist,in 1990 Germany United into 1,and the USSR Collapsed also the Berlin Wall,forming modern day Germany.