Of small stature, with a bookish, bespectacled appearance, Hedin nevertheless proved himself a determined explorer, surviving several close brushes with death from hostile forces and the elements over his long career.

His scientific documentation and popular travelogues, illustrated with his own photographs, watercolor paintings and drawings, his adventure stories for young readers and his lecture tours abroad made him world-famous.

They all sought to purchase his exclusive knowledge about the power vacuum in Central Asia with gold medals, diamond-encrusted grand crosses, honorary doctorates and splendid receptions, as well as with logistic and financial support for his expeditions.

After a less-than-successful lecture tour in 1923 through North America and Japan, he traveled on to Beijing to carry out an expedition to Chinese Turkestan (modern Xinjiang), but the region's unstable political situation thwarted this intention.

With financial support from the governments of Sweden and Germany, he led, between 1927 and 1935, an international and interdisciplinary Sino-Swedish Expedition to carry out scientific investigations in Mongolia and Chinese Turkestan, with the participation of 37 scientists from six countries.

When he ran out of money to pay printing costs, he pawned his extensive and valuable library, which filled several rooms, making possible the publication of additional volumes.

Following recommendations made by Hedin to the Chinese Nationalist government in 1935, the routes he selected were used to construct streets and train tracks, as well as dams and canals to irrigate new farms being established in the Tarim and Yanji basins in Xinjiang and the deposits of iron, manganese, oil, coal and gold discovered during the Sino-Swedish Expedition were opened up for mining.

But one discovery remained unknown to Chinese researchers until the turn of the millennium: in the Lop Nur desert, Hedin discovered in 1933 and 1934 ruins of signal towers which prove that the Great Wall of China once extended as far west as Xinjiang.

Afterward he attended a course in topography for general staff officers for one month in summer 1885 and took a few weeks of instruction in portrait drawing; this comprised his entire training in those areas.

On 15 August 1885, he traveled to Baku with Erhard Sandgren and instructed him there for seven months, and he himself began to learn the Latin, French, German, Persian, Russian, English and Tatar languages.

On 6 April 1886, Hedin left Baku for Iran (then called Persia), traveling by paddle steamer over the Caspian Sea, riding through the Alborz Range to Tehran, Esfahan, Shiraz and the harbor city of Bushehr.

Starting in September he traveled on the Silk Road via cities Mashhad, Ashgabat, Bukhara, Samarkand, Tashkent and Kashgar to the western outskirts of the Taklamakan Desert.

Eric Wennerholm remarked on the subject: I can only come to the conclusion that Sven [Hedin] received his doctorate when he was 27 years old after studying for a grand total of only eight months and collecting primary material for one-and-a-half days on the snow-clad peak of Mount Damavand.

As an explorer, Hedin became important for the Asian and European powers, who courted him, invited him to give numerous lectures, and hoped to obtain from him in return topographic, economic and strategic information about inner Asia, which they considered part of their sphere of influence.

[9] In January 1896, after a stopover in Kashgar, Hedin visited the 1,500-year-old abandoned cities of Dandan Oilik and Kara Dung, which are located northeast of Khotan in the Taklamakan Desert.

These provided information about the history of the city of Loulan, which had once been located on the shores of Lop Nur but had been abandoned around the year 330 CE because the lake had dried out, depriving the inhabitants of drinking water.

From Leh, Hedin's route took him to Lahore, Delhi, Agra, Lucknow, Benares to Calcutta, meeting there with George Nathaniel Curzon, England's then Viceroy to India.

He gave archaeologists, astronomers, botanists, geographers, geologists, meteorologists and zoologists from Sweden, Germany and China an opportunity to participate in the expedition and carry out research in their areas of specialty.

After the lake dried out in 1971 as a consequence of irrigation activities, the above-mentioned transportation link enabled the People's Republic of China to construct a nuclear weapon test site at Lop Nur.

He helped collect public donations for the building of the coastal defense ship HSwMS Sverige, which the Liberal and anti-militarist government of Karl Staaff had been unwilling to finance.

Senior Jewish German archeologist Werner Scheimberg, sent in the expedition by the Thule Society,[21] "had been one of the companions of the Swedish explorer Sven Hedin on his excursions in the East, with archaeological and to some extent esoteric purposes".

By doing so, they accomplished their goal of forcing Hedin against his conscience to write his book Amerika im Kampf der Kontinente in collaboration with the Ministry of Public Enlightenment and Propaganda and other government agencies and to publish it in Germany in 1942.

We frequently think with deep gratitude of our rescuer, who alone is responsible for our being able to survive the horrible period of three years of incarceration and hunger in Theresienstadt concentration camp, at my age a veritable wonder.

Hedin supported the cause of the Norwegian author Arnulf Øverland and for the Oslo professor of philology and university director Didrik Arup Seip, who were interned in the Sachsenhausen concentration camp.

After the third senate of the highest German military court (Reichskriegsgericht) in Berlin condemned to death for alleged espionage the ten Norwegians Sigurd Jakobsen, Gunnar Hellesen, Helge Børseth, Siegmund Brommeland, Peter Andree Hjelmervik, Siegmund Rasmussen, Gunnar Carlsen, Knud Gjerstad, Christian Oftedahl and Frithiof Lund on 24 February 1941, Hedin successfully appealed via Colonel General Nikolaus von Falkenhorst to Adolf Hitler for their reprieve.

The Norwegians Carl W. Mueller, Knud Naerum, Peder Fagerland, Ottar Ryan, Tor Gerrard Rydland, Hans Bernhard Risanger and Arne Sørvag who had been condemned to forced labor under the same charge received reduced sentences at Hedin's request.

The coat of arms of Hedin, together with those of some two thousand noble families, is to be found on a wall of the Great Hall in Riddarhuset, the assembly house of Swedish nobility in Stockholm's inner city, Gamla Stan.

He recorded routes by plotting many thousands of kilometers of his caravan itinerary with the detail of a high resolution topographical map and supplemented them with innumerable altitude measurements and latitude and longitude data.

He systematically studied the lakes of inner Asia, made careful climatological observations over many years, and started extensive collections of rocks, plants, animals and antiquities.

D. Henze wrote the following about an exhibition at the Deutsches Museum entitled Sven Hedin, the last explorer: He was a pioneer and pathfinder in the transitional period to a century of specialized research.