Items Chinese blue-and-white ware were also recovered from the site. Wheeler noted that "rouletted Ware" found at the site (designated as "Arikamedu Type 1" in the scientific study under the "Arikamedu Type 10 Project: Mapping Early Historic Networks in South Asia and Beyond") was not of an Indian origin, but was from the Mediterranean region. A ceramic sherd, ("Arikamedu Type 10) has also been investigated for its style and spatial distribution. After a gap of several decades, in the early 1980s, Vimala Begley studied the ceramics find of the site and proposed a preliminary version of the chronology of the occupation of the site. At the same time she started researching on the beads, organized a proper sequential display of the artifacts of the site at the Pondicherry Museum, and brought out an information brochure. Begley obtained approvals to carry out excavations at the site in collaboration with the University of Pennsylvania and the University of Madras; she and K.V. Raman were the directors of operation from 1989 to 1992. Steven Sidebothom of the University of Delaware, who had back ground knowledge of Roman Egypt, was in charge of the trenching at the site. Further excavations were done during six working seasons from 1989 to 1992, which led to a contradictory view that the brick structures and the wells investigated by Wheeler were of poor quality as they were founded on poor sandy foundations. The wood work was also noted to be of poor quality and the houses had no waterproofing. The excavations also lead to a view that Arikamedu's Roman trading link was more of an inference. The excavations have now established that the trading with Rome extended to a period beyond that assessed by Wheeler; that trading continued from the second century BCE to the seventh or eighth century CE. The extensive findings of glass and stone beads at the site provided Begley the link to Arikamedu's history. She identified the beads as "Indo-Pacific" beads crafted at Arikamedu. Based on the antiquities and structural features from the excavations, Begley and Raman established a revised sequence of six major periods of occupation of the site. Finds of new variety of Roman Amphorae ware also facilitated revision of the dates of occupancy. They have also inferred that the site has been in continuous occupation since at least 2nd or 3rd century BCE to much more recent times. The excavated area of the mound was demarcated into two zones on the basis of occupation and elevation.