The Holocaust: How It Happened

In January 1942, fifteen senior German officials met in a comfortable lakeside villa in the Berlin suburb of Wannsee. Over coffee and brandy, in a meeting that lasted about ninety minutes, they coordinated the logistics of murdering the Jews of Europe. There were no shouting fanatics in the room, only civil servants, lawyers, and bureaucrats discussing transport schedules and jurisdictional questions. The minutes, drafted by Adolf Eichmann and partly preserved, refer not to killing but to "evacuation" and the "final solution to the Jewish question." That cold, clerical tone is one of the most chilling things about the Holocaust. The murder of roughly six million Jews was not an explosion of mob violence. It was a project, planned and administered by a modern state.

Understanding how this happened matters precisely because it did not happen all at once. There was no single moment when a civilized country simply decided to commit genocide. Instead, there was a sequence of smaller steps, each one making the next seem possible, until the unthinkable had become routine. This is the story of that descent.

A Society Primed for Hatred

Antisemitism did not begin with the Nazis. For centuries, Jewish communities across Europe had faced discrimination, expulsion, and violence, often justified by religious prejudice and conspiracy theories that blamed Jews for everything from plague to economic ruin. By the late nineteenth century, this old hatred had taken on a pseudo-scientific form: so-called racial antisemitism, which falsely cast Jews as a biologically distinct and dangerous "race" rather than a religious group.

Germany after the First World War was fertile ground for this poison. The country had lost the war, signed the humiliating Treaty of Versailles in 1919, and then suffered catastrophic hyperinflation followed by the Great Depression. Millions were unemployed, angry, and looking for someone to blame. Adolf Hitler and the Nazi Party offered a simple, false explanation: Germany had been "stabbed in the back" by internal enemies, above all the Jews. It was a lie, but it was a lie that gave despairing people a target.

From the Ballot Box to Dictatorship

A crucial and uncomfortable fact is that Hitler came to power through legal channels. The Nazis became the largest party in the German parliament in the elections of 1932, and in January 1933 President Hindenburg appointed Hitler chancellor. Within months, the new government dismantled democracy from the inside.

The turning point: After a fire gutted the Reichstag building in February 1933, the Nazis used the panic to suspend civil liberties. The Enabling Act, passed in March 1933, let Hitler's cabinet make laws without parliament. Opposition parties were banned, trade unions were crushed, and a one-party state took shape with astonishing speed. By the summer of 1933, the institutions that might have stopped what followed had already been gutted.

Persecution Written into Law

The early phase of Nazi anti-Jewish policy was not mass murder but exclusion, and it was carried out through ordinary legislation. In April 1933, the regime organized a nationwide boycott of Jewish-owned businesses and passed a law removing Jews from the civil service. Over the following years, hundreds of decrees stripped Jews of their rights piece by piece.

The Nuremberg Laws: In 1935, the regime passed laws that stripped Jews of German citizenship and forbade marriage or relationships between Jews and non-Jewish Germans. For the first time, the state defined in legal detail who counted as a Jew, often by counting Jewish grandparents rather than religious practice. This was persecution dressed in the language of law, stamped and filed by clerks.

Kristallnacht: In November 1938, the violence became open and physical. In a coordinated pogrom across Germany and Austria, often called the Night of Broken Glass, mobs and Nazi paramilitaries burned synagogues, smashed Jewish shops, and attacked people in the streets. Roughly one hundred Jews were killed, thousands of businesses were destroyed, and around thirty thousand Jewish men were arrested and sent to concentration camps. In a final cruelty, the regime then fined the Jewish community for the damage. Many Jews who could leave Germany did so, but tightening immigration limits abroad and the cost of escape trapped countless others.

War and Ghettoization

When Germany invaded Poland in September 1939, starting the Second World War, the persecution entered a far more brutal phase. Poland was home to more than three million Jews, the largest Jewish population in Europe. The Nazis began herding them into sealed-off ghettos in cities such as Warsaw and Lodz.

The ghettos were instruments of slow death. Crammed into a few overcrowded streets, cut off from the outside world, and given starvation rations, hundreds of thousands of people died of hunger and disease. The Warsaw ghetto alone held about four hundred thousand people at its peak, packed into an area of barely more than a square mile. Conditions were deliberately engineered to be lethal. This was already mass killing, even before the death camps existed.

The Descent into Mass Murder

The most violent escalation came with the German invasion of the Soviet Union in June 1941. Behind the advancing army moved mobile killing units called the Einsatzgruppen. Their task was to shoot Jews, Soviet officials, Roma, and others on a massive scale. Village by village, they rounded up entire communities, marched them to pits or ravines, and shot them.

Babi Yar: Near Kyiv in September 1941, German forces and collaborators massacred more than thirty thousand Jews in two days at a ravine called Babi Yar, one of the single largest mass shootings of the war. Across the occupied Soviet territories, these shootings killed well over a million people. It was murder on a scale that exhausted even the killers, and the regime began looking for methods that were, in its own grotesque logic, more "efficient."

That search led to the gas. The Nazis had already practiced systematic killing in their so-called euthanasia program, which murdered tens of thousands of disabled people in Germany using poison gas. Now they applied that experience to the genocide of the Jews.

Industrialized Genocide

By early 1942, the policy had become explicit: the total annihilation of European Jewry. The Wannsee Conference coordinated the bureaucracy of that aim. Across occupied Poland, the Nazis built dedicated killing centers, including Treblinka, Belzec, Sobibor, and the vast complex of Auschwitz-Birkenau.

The machinery of death: Jews from across the continent, from France, the Netherlands, Greece, Hungary, and beyond, were packed into freight trains and deported to these camps. On arrival, most were murdered within hours in gas chambers, their bodies burned in crematoria. Auschwitz-Birkenau alone claimed more than one million lives. The killing was organized like a factory process, with records, schedules, and a division of labor that let each participant see only a small part of the whole.

It is important to be precise about the scale and the victims. The Nazis and their collaborators murdered approximately six million Jews, around two thirds of the Jewish population of Europe. The regime also targeted and killed other groups in vast numbers: Roma and Sinti, disabled people, Soviet prisoners of war, Polish civilians, political opponents, gay men, and Jehovah's Witnesses, among others. Historians estimate the total number of people killed by the Nazi regime, beyond combat deaths, runs into many millions.

Resistance, Rescue, and Reckoning

Amid the horror, there was resistance and there was rescue, and both deserve to be remembered honestly. In April 1943, the Jews of the Warsaw ghetto rose up against deportation in an armed revolt that held out for weeks against overwhelming German force. Prisoners staged uprisings at Treblinka and Sobibor. Individuals across Europe risked their lives to hide neighbors and smuggle people to safety, and several governments and ordinary citizens saved many lives.

Yet rescue was the exception. The wider world knew, in broad outline, that something terrible was happening, and the response was often slow, limited, or absent. That failure is part of the history too.

When the camps were liberated in 1944 and 1945, Allied soldiers found scenes that hardened into permanent evidence. After the war, the Nuremberg trials prosecuted leading Nazis, and the word "genocide," coined by the jurist Raphael Lemkin, entered international law. The Holocaust became a central reason the world adopted the Genocide Convention in 1948.

Key Takeaways

The Holocaust was not a sudden eruption of evil but a process, and that is exactly why it must be understood. A modern, educated state moved in stages from legal discrimination to ghettos to mass shootings to purpose-built death camps, and at each step ordinary officials, soldiers, and citizens made it work. The roughly six million Jews murdered, alongside millions of other victims, died because hatred was given the tools of bureaucracy, law, and industry, and because too few people resisted while it was still possible to do so. Studying how it happened is not a matter of distant history but a warning about how prejudice, propaganda, and the steady erosion of rights can lead a society into atrocity. Remembering the names, the numbers, and the steps is one of the ways we honor the victims and guard against the conditions that destroyed them.