Shortly after its construction in 1911, today's Platz der Deutschen Einheit was initially named "Boseplatz" after the Nassau general Friedrich Julius Wilhelm von Bose. In 1916, the Lyzeum II girls' school (now the Elly Heuss School), founded in 1909, was built here. The Faulbrunnen fountain was located on the north side of the square, on the corner of Bleichstraße and Schwalbacher Straße. Boseplatz developed into the central traffic junction of the city of Wiesbaden. From the end of the 1970s until the start of construction work on the new sports hall, this was the central bus station.

The square was renamed Platz der Deutschen Einheit (Square of German Unity) in 1958 in response to the popular uprising in the GDR on 17 June 1953. In the course of the redesign, the traffic routing was changed and the old buildings with the youth traffic school were demolished in 2010. The Police City Precinct was built in 2008/2009 and the new sports hall, which is used by both the Wiesbaden Volleyball Club and the Elly Heuss School, opened in July 2014.

Baumgart-Buttersack, Gretel: Friedrich J. von Bose (1809-1894). The square named after the patron saint and German unity. In: Wiesbadener Leben 5/1994 [p. 13 f.].

Ey, Hildegard: From Boseplatz to "Platz der Deutschen Einheit" - from patron saint to urban planning catastrophe. In: Wiesbadener Leben 2/1991 [p. 28 f.].