From Kalki Purana Divine Secrets Chapter (Sukshmal Sukshma Kandom) written by Agastya. Histrorical evidences about incarnation and reincarnation.
In ancient times, in Shiva loka, Lord Shiva informed Parvathi Devi, before Sree Krishna, Kalki had incarnated as Sree Rama (7th incarnation of Lord Vishnu) and executed Welfare Nation. Original Sanskrit palm leaves written by sage Agastya. Aadi Tamil translation is known as Nadi Palm Leaves..
This video recorded on 16th Nov 2004 from the Nadi Office of A. Sivasamy, S/o V.S. Arulsiva Arumugam, Vaitheeswaran Koil, Nagai (Dt), Tamil Nadu, India.
Aadi Tamil Stanzas with English Prose Translation
Ganyamaay Athanmunnai Manithanaay (1):10:3)
Kadamaiyathu Maaraamal Irukkavendi (1):10:4
Vendithaan SreeRaman Avataramkondu (1):11:1
Vehumsirappai Arakkarkalai MaithavanNee (1):11:2
Kaanappin Thaithanthai Thunaikalkkum (1)11:3
Ganyamaay Ottrumayaay Kadamaimaara (1):11:4
Maaraamal Avarkaludan Anbaaynintraay (1):12:1
Makkalellaam Purunthittar Amaithiyode (1):12:2
Ganyamaay=sincerely with justice as per rules, Athanmunnai=before that, Manithanaay=as a human, Kadamaiyathu Maaraamal Irukkavendi=how to do the responsibilities regularly, Vendithaan=to inform, Sree Raman=as Sree Rama (7th incarnation of Lord Vishnu), Avataramkondu= incarnated, Vehumsirappai=especially, Arakkarkalai=evil forces, Maithavan Nee=you have killed, Kaanappin=along with that, Thaithanthai=to parents, Thunaikalkkum=to brothers and sisters, Ganyamaay=sincerely with justice as per rules, Ottrumayaay=with unity, Kadamaimaara=sincerely doing the duties, Maaraamal=without difference, Avarkaludan=along with them, Anbaaynintraay=with unity and acceptance, Makkalellaam=people, Purunthittar=informed, Amaithiyode=all that is needed for living in peace.
Before Sree Krishna, Kalki incarnated as Sree Rama (7th incarnation of Lord Vishnu) for the fulfillment of real welfare rule. At that time, You have destructed evil forces and practically implemented the real welfare rule and proved how to do the duties and responsibilities between family members and people as per justice and morality with their position in the country. Lord Shiva said.
Pottrumpadi Ithuvaraiyil Ithaninpinnum (1):12:3
Bhuvulakil Athanpinnum Avatarithaay (1):12:4
Pottrumpadi=is famous, Ithuvaraiyil=even now, Ithaninpinnum=before this, Bhuvulakil=on the earth, Athanpinnum=after that, Avatarithaay=incarnated.
Before Sree Rama and after Sree Krishna, Kalki incarnated several times. Lord Shiva said to Parvathi Devi.