Assan was born on 1 August 1860 in Bucharest, belonging to a rich family. His father, George Assan, a Romanian from Bessarabia, settled in the city and built the first windmill in Romanian history on the shore of the Colentina Lake in 1853. His mother was Alexandrina Assan. Gheorghe G. Assan, his brother who was born in 1862, studied commerce in Antwerp, Belgium, and held various positions in commercial and other institutions. Assan studied engineering in Liège, Belgium, and economics in Montreux, Switzerland. In 1884, he returned to Bucharest to become a partner in his father's company with his brother. These two modernized the company and built two factories, one for soap and the other for paint and varnish. Assan was one of the persons who helped Romania industrialize at approximately the same rate as other European countries. He also designed a canal between Cernavodă and Constanța, publishing an article in 1899 about it. Assan, together with the aviation and automobile enthusiast George Valentin Bibescu and the baronBarbu Bellu, was the first person to bring an automobile to Romania. The first two requested one from the brand FN Herstal. Since Bibescu did not have time to register it, Assan became in 1900 the first person to receive a plate, 1B. However, Bibescu wanted to be the first one, so in 1901, the Capital Prefecture made an exception and gave him the plate 0B, technically making him the owner of the first plate in Romania. Not much is known about Assan's family. He married a Romani woman and had three daughters. Assan named them according to where he was when they were born. Thus, the first was called Athenaida after Athens, Consuella after Spain and Pacifica after the Pacific Ocean. In 1904, Assan built a grain silo, making it the tallest building in Bucharest at the time. He also built the first edible corn oil factory in the country. Between 1906 and 1914, he built a neoclassical house in Bucharest, known as the Assan House. He died on 16 June 1918 in Montreux.
Expeditions
Assan, stimulated by his knowledge of economics, commerce and industry, was greatly interested in discovering the world. Therefore, in the summer of 1896, he embarked on the Norwegian ship Erling Jart and, along with other scientists of various nationalities, traveled to the Arctic. Assan and the scientists studied the geological structure and natural resources of the archipelago of Svalbard. Thus, he became the first Romanian to travel to the Arctic. Afterwards, between 1897 and 1898, departing from Constanța, he passed through Constantinople, Alexandria, Ceylon, Singapore, Hong Kong, Shanghai, Nagasaki, Tokyo, Yokohama, San Francisco, New York and London, establishing several trade agreements and becoming the first Romanian to travel around the world. His expeditions were published in the Royal Society of Geography of Romania, of which he was a member. After returning, he presented his conference Călătorie în regiunile polare nordice to the King Carol I and the Prince Ferdinand I, and days later to the Queen Elisabeth of Wied. In 1899, he presented to the public Călătoria împrejurul Pământului, his second conference. Between December 1897 and the middle of 1898, Assan made another trip, this time with more economic and cultural intentions.