Roughly corrected section of the Papal-Tuscan border

Added (early 19th century) section of the border which ran along the historical course of the Po between Parma, Modena, Guastala and Mantua; Corrected part of the southern border of Parma with Tuscany (pre-1847); Fixed some relations

Corrected Lombardy-Tyrol border pre-1859 (Val di Daone/upper Chiese valley)

Minor improvements to the northern part of the pre-1844 Modena-Parma border; Added early 19c versions of the Enza and Parma to reflect their 2nd survey courses; Improved section of the Modenese borders w/ Mantua & the Papal States

Roughly improved border between Modena and Parma and implemented the 1844 Trattato di Firenze

Roughly improved border of Lower Austria with Hungary/Burgenland

Roughly added the Kreise ober dem Manhartsberg and ober dem Wienerwald; Added ways to represent the Danube around Vienna pre-straightening (1875)

Roughly added the Kreise unter dem Manhartsberg and unter dem Wienerwald

Added Vienna 1850-1890 and Lower Austria 1803-1850

Fixed improperly tagged section of the Danube

Improvements to Habsburg-era Upper-Lower Austrian border; Rough improvements to Styrian borders with Salzburg and Upper Austria

Minor correction to Lombardy

Added the Marburger and Grazer Kreise to Styria; Corrected Münichholz pre-1938 (it was part of Lower Austria until 1938-10-15)

Added Cillier, Brucker and Judenburger Kreise to Styria; Improved some borders in (19c) Styria; Fixed some relations; Added Istrier Kreis/Mgft Istrien

Fixed some relations

Fixed some relations

Corrected border between Baden and Württemberg north-east of Diesenhof; Added minor exclave of Baden in Württemberg (I don't know when it was eliminated but it was some time between 1838 and 1896, and probably post-1850s); Corrected Sentenhart ownership.

Added Margraviate of Istria and 1803-09 Duchy of Carniola. Corrected some other associated borders.

Minor correction to county of Gorizia (and the HRE)

Various improvements/corrections to Rep. Venice (roughly added Bergamo & Crema; removed Papal possessions north of the Po). Improved boundaries of Mantua and added its Delegation/Province 1815-59. Added missing Tuscan exclave.