Complex sentence: The literary works like "Unnuneeli Sandesam" give some insight into the ancient period of this district, and some archeological antiques like stone inscriptions, historical monuments found in the temples, churches, rock-cut caves also emphasize its historic value.
Split into simpler sentences: The literary works like "Unnuneeli Sandesam" give some insight into the ancient period of this district. Whereas some archeological antiques like stone inscriptions, historical monuments found in the temples, churches, rock-out caves also emphasize its historic value.