|American electrochemical engineer Libb Thims with the two heads of the Romanian school of physical socioeconomics, from left to right: Ion Siman and Gheorghe Savoiu, holding Thims 2008 The Human Molecule, Thims, holding Savoiu and Siman's 2012 Econophysics, and Constantin Bratianu, a newcomer to the group, noted for his work in knowledge thermodynamics (28 Jun 2013).|
In 1907, a peasants’ rising took place in Romania, to which Haret took notice. The event, in some way, according to Romanian sociology historian Ovidiu Badiaa, was a goad or driving force behind the writing of his 1910 Social Mechanics; about which he said the following: 
“We may hope that someday safe methods could be provided to help the solving of many problems which today are often doomed to the inspiration of the moment, or the happening or inclinations.”
In his Social Mechanics, Haret outlined a mathematical-based formulation of social mechanics, in which he used mathematics and Newtonian mechanics to explain social behavior, in terms of Cartesian coordinates of moving points and velocities. 
In 1971, Romanian-born American mathematician Nicholas Georgescu-Roegen, originally at the University of Bucharest then at University of Vanderbilt, who in 1971 famously published his The Entropy Law and the Economic Process, wherein he attempted to describe economic processes in second law of thermodynamics terms; therein initiating who most tend to think of as the most well-known of the "Romanian school" of physical science based economics and sociology stems.
One of the first Romanian scientists, following Georgescu-Roegen, to venture into the humanities was physicist Margareta Ignat, at Alexandru loan Cuza University, who together with her graduate student Mircea Gligor helped to develop the field of econophysics in Romania. 
In 2001, e.g., Gligor and Ignat published “Econophysics: a New Field for Statistical Physics?”, wherein the discussed the rise of econophysics of financial markets in the previous decade. 
University of Pitesti | Econo-Socio-Physics workshops
In circa 2005, Romanian economist Gheorghe Savoiu opened up a dialogue with physicist Ion Siman, both at the University of Pitesti, on the implications of physics for economics and sociology, and in 2008 initiated their yearly Econophysics and Sociophysics Workshops (e.g. see: UPESW 5), hosted at the University of Pitesti, and in 2011 launched Econophysics, Sociophysics, and Multidisciplinary Sciences Journal, thereby spearheading the Romanian school of physical socioeconomics into solidity.
UPESW | 2013
In 2013, American electrochemical engineer Libb Thims lectured at the fifth annual University of Pitesti Econophysics and Sociophysics Workshop (UPESW 5). An after dinner meetup following the 29 Jun 2013 workshop is shown below; starting bottom left, going clockwise: Daniel Pele, Mircea Gligor, Constantin Bratianu, Gheorghe Savoiu, Radu Chisleag, Thims, and linguist Manea Coustantui:
● Radu Chisleag | Polytechnic University of Bucharest
● Roxana Chisleag
● Constantin Bratianu | UNESCO Department for Business Administration
● Ivona Orzea
● Daniel Pele (Ѻ) | Bucharest University of Academic Studies
1. Manea, Constantin. (2013). “Book Review: Econophysics: Background and Applications in Economics, Finance, and Sociophysics” (pdf), Amfiteatru Economic Recommends, 15(33):301-04.
2. Mircea, Gligor and Ignat, Margareta. (2001). “Econophysics: a New Field for Statistical Physics?” (abs) (pdf), Interdisciplinary Science Reviews, 26(4):183-190.
3. Badiaa, Ovidiu. (1990). “Sociology in Romania”, in: Glimpses of Sociology in Eastern Europe (editors: Jiri Kolaja, Man Das) (§7:253-300; §§3:Spiru Haret and social mechanics, pgs. 262-64). M.D. Publications.
4. Haret, Spiru. (1910). Mecanique Sociale (Social Mechanics). Gauthier-Villars.