once was dead, and that the soul now inhabiting the apparent Gosāla in front of him was a reanimated, completely different Gosala. This argument was declared a form of sophistry by Mahavira, and this led to a significant break in the relations between the two. Inscriptions and caves Several rock-cut caves belonging to Ājīvikas are dated to the times of the Mauryan emperor Ashoka (r. 273 BCE to 232 BCE). These are the oldest surviving cave temples of ancient India, and are called the Barabar Caves in Jehanabad district of Bihar. The Barabar caves were carved out of granite, has a highly polished internal cave surfaces, and each consists of two chambers, the first is a large rectangular hall, the second is a small, circular, domed chamber. These were probably used for meditation. The Ashokan dedications of several Barabar Caves to the Ajivikas were engraved during the 12th year and the 19th year of his reign (about 258 BCE and 251 BCE respectively, based on a coronation date of 269 BCE). In several instances, the word "Ājīvikas" (𑀆𑀤𑀻𑀯𑀺𑀓𑁂𑀳𑀺, Ādīvikehi) was later attacked by the chisel, probably by religious rivals, at a time when the Brahmi script was still understood (probably before the 5th century CE). However, the original inscriptions being deep, they remain easily decipherable. Decline After the decline of the Maurya Empire in the 2nd century BCE, the Ajivikas find only occasional mentions in the Sanskrit literature, and do not appear to have been serious rivals to other sects. The final version of the Buddhist and Jain scriptures were compiled at a later period, but the description of Ajivikas in these texts likely represents the conditions of the Maurya and pre-Maurya times. In northern India, Ajivikas may have become insignificant by the Shunga period (1st century BCE), although they may have survived until the 15th century, as suggested by stray references to them in various texts. References in the Vayu Purana suggest that during the Gupta period (4th-6th century CE) the Ajivika practices had changed substantially, and their sect was declining rapidly. The Brhaj-jataka of Varahamihira (6th century) mentions the Ajivikas (among other major ascetic groups) in an astrological context, stating that a person born under a certain planetary influence becomes an Ajivika ascetic. According to the 9th-10th century commentator Utpala, "Ajivika" in this context refers to the Vaishnavite Ekadandin ascetics. However, according to historian Ajay Mitra Shastri, Varahamihira