Complex sentence: Huntingford noted that Roman pottery was found at Arikamedu in 1937, and archaeological excavations between 1944 and 1949 showed that it was "a trading station to which goods of Roman manufacture were imported during the first half of the 1st century AD".
Split into simpler sentences: Huntingford noted that Roman pottery was found at Arikamedu in 1937. In addition, archaeological excavations between 1944 and 1949 showed that it was "a trading station to which goods of Roman manufacture were imported during the first half of the 1st century AD".