Tierpark Hagenbeck founded by Carl Hagenbeck
The Tierpark Hagenbeck is a zoo in Stellingen, Hamburg, Germany. The collection began in 1863 with animals that belonged to Carl Hagenbeck Sr. (1810–1887), a fishmonger who became an amateur animal collector.  The park itself was founded by Carl Hagenbeck Jr. in 1907. It is known for being the first zoo to use open enclosures surrounded by moats, rather than barred cages, to better approximate animals' natural environments.History
Animal and Human trading
In 1863, the elder Hagenbeck began collecting exotic animals that came through Hamburg's port.  By the 1870s, the trade had proved more lucrative than his fish shop, and Hagenbeck had become one of the most prominent exotic animal traders in all of Europe. In 1874, the younger Hagenbeck traveled around the world collecting animals. Among his collections, however, were also human beings whom he exhibited in "human zoos". Hagenbeck decided to exhibit Samoan and Sámi people as "purely natural" populations. The Sámi were presented with their tents, weapons, and sleds, beside a group of reindeer.
In 1874, Hagenbeck opened a zoo facility in Hamburg, called Carl Hagenbeck's Tierpark, while he continued exhibiting humans. In 1876, he began exhibiting Nubians all across Europe.  He also dispatched an agent to Labrador to secure a number of "Esquimaux" (Inuit) from the settlement of Hebron; these Inuit (see Abraham Ulrikab) were exhibited in the Hamburg Tierpark.Though initially popular, Hagenbeck's shows gradually began to decline in popularity, especially once the photograph became more and more common, and Hagenbeck's exhibits began to look less and less real in comparison. After one exhibit, Hagenbeck was left with a large number of elephants and no one to purchase them. Unable to sell, he started a circus. To counter the declining popularity of his human zoos, Hagenbeck began working on making his displays more realistic, techniques that would later influence the animal zoo.