The Auschwitz registry (Hauptbücher) shows that 20,946 Roma were registered prisoners,[146] and another 3,000 are thought to have entered unregistered.[147] On 22 March 1943, one transport of 1,700 Polish Sinti and Roma was gassed on arrival because of illness, as was a second group of 1,035 on 25 May 1943.[146] The SS tried to liquidate the camp on 16 May 1944, but the Roma fought them, armed with knives and iron pipes, and the SS retreated. Shortly after this, the SS removed nearly 2,908 from the family camp to work, and on 2 August 1944 gassed the other 2,897. Ten thousand remain unaccounted for.[148]

Nazi racial theorist Hans F. K. Günther argued that European peoples were divided into five races: Nordic, Mediterranean, Dinaric, Alpine and East Baltic.[3] Günther applied a Nordicist conception in order to justify his belief that Nordics were the highest in the racial hierarchy.[3] In his book Rassenkunde des deutschen Volkes (1922) ("Racial Science of the German People"), Günther recognised Germans as being composed of all five races, but emphasized the strong Nordic heritage among them.[151] Hitler read Rassenkunde des deutschen Volkes, which influenced his racial policy.[152] Gunther believed that Slavs belonged to an "Eastern race" and he warned against Germans mixing with them.[153] The Nazis described Jews as being a racially mixed group of primarily Near Eastern and Oriental racial types.[154] Because such racial groups were concentrated outside Europe, the Nazis claimed that Jews were "racially alien" to all European peoples and that they did not have deep racial roots in Europe.[154]
^ This was the result of either a club foot or osteomyelitis. Goebbels is commonly said to have had club foot (talipes equinovarus), a congenital condition. William L. Shirer, who worked in Berlin as a journalist in the 1930s and was acquainted with Goebbels, wrote in The Rise and Fall of the Third Reich (1960) that the deformity was caused by a childhood attack of osteomyelitis and a failed operation to correct it.
In addition to eliminating Jews, the Nazis planned to reduce the population of the conquered territories by 30 million people through starvation in an action called the Hunger Plan. Food supplies would be diverted to the German army and German civilians. Cities would be razed and the land allowed to return to forest or resettled by German colonists.[327] Together, the Hunger Plan and Generalplan Ost would have led to the starvation of 80 million people in the Soviet Union.[328] These partially fulfilled plans resulted in the democidal deaths of an estimated 19.3 million civilians and prisoners of war (POWs).[329] During the course of the war, the Soviet Union lost a total of 27 million people; less than nine million of these were combat deaths.[330] One in four of the Soviet population were killed or wounded.[331]
Use of bunkers I and 2 stopped in spring 1943 when the new crematoria were built, although bunker 2 became operational again in May 1944 for the murder of the Hungarian Jews.[47] Crematorium II, which had been designed as a mortuary with morgues in the basement and ground-level incinerators, was converted by installing gas-tight doors, vents for the Zyklon B to be dropped into the chamber, and ventilation equipment to remove the gas thereafter.[48] It went into operation in March 1943. Crematorium III was built using the same design. Crematoria IV and V, designed from the start as gassing centers, were also constructed that spring. By June 1943, all four crematoria were operational. Most of the victims were killed using these four structures.[49]

Nazis constructed gas chambers (rooms that filled with poison gas to kill those inside) to increase killing efficiency and to make the process more impersonal for the perpetrators. At the Auschwitz camp complex, the Birkenau killing center had four gas chambers. During the height of deportations to the camp in 1943-44, an average of 6,000 Jews were gassed there each day.
The Auschwitz Memorial and Museum is easily navigated on foot. There is a free shuttle bus between the Auschwitz I and Birkenau sites, leaving every half hour at the top of the hour from Auschwitz I to Birkenau, and going the opposite way every 15 minutes of the hour at half hourly intervals. Please check the timetable at the bus stop as intervals and shuttle operation hours may change depending on the season, or you can walk the two miles between the camps. If you've just missed a bus, a taxi between the sites will cost about 15PLN.
As Soviet armies advanced in 1944 and early 1945, Auschwitz was gradually abandoned. On January 18, 1945, some 60,000 prisoners were marched to Wodzisław Śląski, where they were put on freight trains (many in open cars) and sent westward to concentration camps away from the front. One in four died en route from starvation, cold, exhaustion, and despair. Many were shot along the way in what became known as the “death marches.” The 7,650 sick or starving prisoners who remained were found by arriving Soviet troops on January 27, 1945.

The Lajkonik bus leaves Kraków Central Bus station (usually from the upstairs "G" bays, instead of the downstairs "D" bays). Some busses go directly to Auschwitz, after passing the Oświęcim train station (OŚWIĘCIM, Dworzec PKP): they usually say "Oświęcim, Auschwitz Museum". The trip takes about 90 minutes, but beware some routes take much longer (e.g. 2h30m).

After Germany's annexation of Austria in March 1938, the Nazis arrested German and Austrian Jews and imprisoned them in the Dachau, Buchenwald, and Sachsenhausen concentration camps, all located in Germany. Following the violent Kristallnacht ("Night of Broken Glass") pogroms in November 1938, the Nazis conducted mass arrests of adult male Jews and incarcerated them in camps for brief periods.
Another important figure in pre-Nazi völkisch thinking was Wilhelm Heinrich Riehl, whose work—Land und Leute (Land and People, written between 1857 and 1863)—collectively tied the organic German Volk to its native landscape and nature, a pairing which stood in stark opposition to the mechanical and materialistic civilization which was then developing as a result of industrialization.[63] Geographers Friedrich Ratzel and Karl Haushofer borrowed from Riehl's work as did Nazi ideologues Alfred Rosenberg and Paul Schultze-Naumburg, both of whom employed some of Riehl's philosophy in arguing that "each nation-state was an organism that required a particular living space in order to survive".[64] Riehl's influence is overtly discernible in the Blut und Boden (Blood and Soil) philosophy introduced by Oswald Spengler, which the Nazi agriculturalist Walther Darré and other prominent Nazis adopted.[65][66]
I have already said I that our barracks were overcrowded. It should be added that, although these barracks contained toilets and washrooms, neither came up to the most modest demands of modern hygiene. The cleansing of our bodies took place in a special room and was limited to a short washing of the upper extremities with cold water. A weekly warm shower was supposed to be provided, but with the overcrowding of the camp it was several weeks before a bath was available for each one. There was, of course, no toilet paper.

On 26 June 1933, Himmler appointed Theodor Eicke commandant of Dachau, who in 1934 was also appointed the first Inspector of Concentration Camps (CCI). In addition, the remaining SA-run camps were taken over by the SS.[14][15][16] Dachau served as both a prototype and a model for the other Nazi concentration camps. Almost every community in Germany had members who were taken there. The newspapers continuously reported on "the removal of the enemies of the Reich to concentration camps" making the general population more aware of their presence. There were jingles warning as early as 1935: "Dear God, make me dumb, that I may not come to Dachau."[17]