Some Nazis did a little homework ... In the Middle Ages the Catholic Church had ordered the civil authorities to make Jews to wear a clear, identifying badge on their outermost clothing. The most commonly used badge for this purpose was the Star of David in red or yellow, probably because it was easy to understand, but in some places other badges were used.
The use of this badge to mark out Jews has a long and shameful history. When Napoleon and the French Revolutionary Armies entered the city of Ancona in the Papal States in 1797, he noticed small groups of people huddled together, wearing the red badge. Napoleon was unfamiliar with this practice but immediately worked out that it was a discriminatory badge. He asked some of his officers to explain what was going on. Napoleon commented that the badge and enforced ghettoziation were contrary to the ideals of the French Revolution - liberty, equality, fraternity, and he banned the badge at once, and also the requirement that Jews live in a designated area (ghetto). He did the same in Rome and elsewhere, including Frankfurt. The ghettos in Rome and (with some modifications, also in Frankfurt) were reimposed in 1815, following the final defeat of Napoleon.
A concentration camp is a large detention center created for political opponents, aliens, specific ethnic or religious groups, civilians of a critical war-zone, or other groups of people, often during a war. The prisoners there are kept under harsh and barely livable conditions and are detained and confined. Spelt concentration camp. It was a place that the German people put Jews. They did not like Jews. They would not feed them very much and then they would kill them. Watch "The Boy In The Striped Pajamas" to find out more.
The disabled were immediately exterminated due to their lack of physical perfection and uselessness. They were all killed through a systematic euthanasia program code-named T4 (in relation to address where it took place) by lethal injection. If they were killed in a hospital, all ashes were put in a communal pile and were placed in urns with fictional death certificates citing an illness or accident as cause of death and sent to families with no regard whether or not they were receiving the correct ashes. Literally no disabled persons survived the holocaust.
Most of the disabled victims were killed in large designated hospitals.
The defeat of the Nazi's, exposing the murder of the death camps and trial, conviction and execution of the murderers. The liberations of the camps.
The question was basically concerning ships of Jewish refugess in WW2. A very real and important topic. Not what it has now become. There are several stories of different ships containing Jewish refugess from the Nazi's before, during and after the war. Some very famous ones include the well documented tribulations of several that were refused to land in the US, basically because the US didn't really want Jews either. Most of these people went on to die as they could find no safe harbor. Another, after the war, on a ship called Exodus could not land it's cargo of already displaced holocaust people in what was then Palestine (now Isreal), with similar results. There are several movies about several of these vessels, or more rightfully, the journey of their passengers. 1939 - After cruising by Miami Beach, rejected by U.S. and Cuban authorities, the St. Louis returned to Europe, where four countries -- Belgium, France, Netherlands and Britain -- agreed to take the refugees. When war swept the continent a few months later, almost half would eventually die in death camps and detention centers. Search for other examples will develop another famous incident a few years later, where US landing was refused, although some infants were allowed to be disboarded. The ship was then sent back out to sea, where a Nazi U-Boat was known to be on patrol. The sinking took the lives of all aboard.