Jatintackan: The Old Town of Solo in the 18th Century, One of the VOC Trading Posts on the Banks of the Semangi River

François Valentijn's journey through Java, including his exploration of the Samangi River (also referred to as Semangi, Semangie, Semanggi, Samangij Rivier, or Bengawan Solo), is documented in his book Beschryving van Groot Djava, of te Java Major, Vierde Deel, published in 1724. From this journey, he created a map depicting the old city area of Solo, with annotations identifying the region as Jatintackan. Based on geographical analysis, it is undeniable that this area corresponds to what is now recognized as the village of Solo rather than the Kalirahman area (as referenced in 1821), where the name "Solo" first appeared on ancient maps. Instead, Jatintackan is located near Bandar Noesoeban, as confirmed by four pieces of cartographic evidence: two VOC (Vereenigde Oostindische Compagnie) maps from the 1700s, one map by Dirk de Vries-Baai from the same period, and one map by François Valentijn from 1724. This paper aims to demonstrate, through the analysis of these four historical maps, that Jatintackan corresponds to the area now recognized as Solo. By synthesizing and cross-referencing these maps, it is established that Jatintackan is a historically significant area and is identified as the foundation of Solo's old town. Furthermore, it highlights Jatintackan as an important trading center for the VOC in the 18th century. This research provides crucial insights into the historical origins of Solo and its role as a cultural and economic center during the colonial era.