The excavations were led by the State conservator Carl Klein. He found two secondary buildings, additional foundations and a well or cistern. After evaluating the finds it was concluded, that the twin temples was dedicated to the God Mercury and his wife Rosmerta. A significant amount of coins were found at the temple district that was helpful in dating the time period in which the temples were frequented. According to time periods in which the coins were in use, it can be estimated that the temple district was in use at least between the second century BCE and the end of the fourth century CE. It thus would predate the Vicus in Schwarzenacker and would still have been in use after the destruction of the Vicus in 274 CE. After the excavations were completed the temple distract was again completely filled with earth and the ruins are no longer visible. The first documented mention of Bierbach is found in a property exchange deed of the neighboring monastery Wörschweiler in 1230. According to historic records, Count Heinrich of Castel and Heinrich of Kirkel exchanged estates of the monastery Wörschweiler in Hassel for estates of Bierbach. In 1558, the monastery of Wörschweiler was abolished by the Duke of Palatine Zweibrücken who had become Protestant. Bierbach belonged to the duchy of Palatine Zweibrücken until in 1794 revolutionary French troops occupied the left bank of the Rhine and thus also Bierbach. After the French Revolution. With the Peace of Campo Formio in 1797, France annexed the area and in 1798 introduced its administrative system. Following the defeat of Napoleon at the Battle of Leipzig in 1813 and the capture of the Left Bank of the Rhine by the Allies in January 1814, the recaptured territory was put under the provisional authority of the General Government of the Middle Rhine. However, from June 16 of that same year, it was placed under the Imperial-Royal Austrian and Royal Bavarian Joint Land Administration Commission. On 14 April 1816, a treaty was signed between Austria and Bavaria, in which various territorial changes were agreed upon. As a consequence Bierbach which was part of the district of Zweibrücken became part of the Bavarian Rheinkreis of which the city of Speyer became the capital. After the lost First World War the Treaty of Versailles of 1919 ordered the separation of western areas of the Palatinate.