On 15 March 1921, Armenian student Soghomon Tehlirian assassinated Talaat Pasha, a leading Ottoman politician and the main architect of the Armenian genocide, in Berlin. About a million Armenians died in the genocide, including most of Tehlirian's family. He joined a clandestine assassination campaign seeking revenge. Tehlirian's trial (pictured) was held on 2 and 3 June 1921, and the defense strategy was to put Talaat on trial for the Armenian genocide. Several eyewitnesses to the genocide testified, resulting in "one of the most spectacular trials of the twentieth century". Tehlirian claimed he had acted alone, telling a dramatic, but untrue, story of witnessing the deaths of his family members. He argued: "I have killed a man, but I am not a murderer", and the jury acquitted him. International news coverage brought attention to the facts of the Armenian genocide. The coverage inspired Polish-Jewish lawyer Raphael Lemkin to coin the term genocide and help codify it as a crime in international law. Tehlirian's trial was held 2–3 June 1921, and the defense strategy was to put Talaat on trial for the Armenian genocide. Extensive evidence on the genocide was heard, resulting in "one of the most spectacular trials of the twentieth century", according to Stefan Ihrig.[3] Tehlirian claimed he had acted alone and that the killing was not premeditated, telling a dramatic and realistic, but untrue, story of surviving the genocide and witnessing the deaths of his family members. The international media widely reported on the trial, which brought attention and recognition of the facts of the Armenian genocide; Tehlirian's acquittal brought mostly favorable reactions. Both Talaat and Tehlirian are considered by their respective sides to be heroes; historian Alp Yenen refers to this relationship as the "Talat–Tehlirian complex". Talaat was buried in Germany, but Turkey repatriated his remains in 1943 and gave him a state funeral. Polish-Jewish lawyer Raphael Lemkin read about the trial in the news and was inspired to conceptualize the crime of genocide in international law.

The Pali-Aike volcanic field is a volcanic field in Argentina that straddles the border with Chile. It is part of a family of back-arc volcanoes in Patagonia that formed from the collision of the Chile Ridge with the Peru–Chile Trench. There are approximately 467 vents in an area of 4,500 square kilometres (1,700 square miles). The field was first active 3.78 million years ago, and is noteworthy for the presence of large amounts of xenoliths in its rocks. The latest eruptions occurred during the Holocene, as indicated by the burial of archaeological artifacts; the Laguna Azul maar formed about 3,400 years before present. Humans have lived in the region for thousands of years, and a number of archaeological sites such as the Fell Cave are located in the field. Presently, parts of the volcanic field are protected areas in Chile and Argentina. The city of Río Gallegos in Argentina is within 23 kilometres (14 mi) of the volcanic field. The volcanic field consists of an older plateau basalt formation and younger volcanic centres in the form of pyroclastic cones,[b] scoria cones,[c] maars[d] and associated lava flows. There are approximately 467 vents in an area of 4,500 square kilometres (1,700 square miles). The vents often form local alignments along lineaments or faults, and there are a number of maars and other lakes, both volcanic and non-volcanic. The volcanic field is noteworthy for the presence of large amounts of xenoliths[e] in its rocks and because the maar Potrok Aike is located here, where palaeoclimate data have been obtained. The field was active starting from 3.78 million years ago. The latest eruptions occurred during the Holocene, as indicated by the burial of archaeological artifacts; the Laguna Azul maar formed about 3,400 years before present. Humans have lived in the region for thousands of years, and a number of archaeological sites such as the Fell Cave are located in the field. Presently, parts of the volcanic field are protected areas in Chile and Argentina, and the city of Rio Gallegos in Argentina is within 23 kilometres (14 mi) of the volcanic field.