Kalyanam

Pallandu

Periy Alvar / Tirumozhi

http://www.ganesh.us/mantara/andal.html

Alvar / Detail / Brief / Period / Revital

Azhwar means one who is "immersed" in the experience of God. They deeply immerse themselves in their devotion and bhakti towards the Lord Sriman Narayanan.There was socialism in the Bhakti cult and Azhwars come from all walks of life and all strata of society. Out of these 12 Azhwars, one was a woman (Andal) and two were kings (Kulasekaraazhwar and Thirumangaiazhwar). The first three Azhwars, viz., Poigai Azhwar, Boothath Azhwar and Pei Azhwar, were called "Mudhal Azhwars" as they lived during the same period. Out of the 12 Azhwars four were from different regions of Tamil Nadu, India, i.e. Thondai Naadu (North Tamil Nadu), four from Pandiya Naadu, three (south Tamil Nadu) from Chola Naadu (East Tamil Nadu) and one from Malai Naadu (present Kerala).

http://en.wikipedia.org/wiki/Alvars
http://www.divyadesam.com/alwars.shtml

Period of Azhwars. The period of the Azhwars based on Indian Historians range from 500 A.D for Poigai Azhwar, Bhoothatth Azhwar, Pey Azhwar and Thirumazhisai Azhwar; 550 A.D. for Namm Azhwar and Madhurakavi Azhwar; 600 A.D. for Kulasekara Azhwar and Peria Azhwar; 650 A.D. for Sri Andal; 700 A.D. for Thoddaradippodi Azhwar and Thiruppaan Azhwar and 750 A.D. for Thirumangai Azhwar.

Revitalization of Vaishnavism. Between the fifth and ninth century, in the Tamil-speaking land of India, Azhwars revitalized the Indian religious milieu, sparking a renewal of the Bhakti cult. Traveling by foot from place to place, from temple to temple, from holy site to holy site, they composed exceedingly beautiful poetry to their Divine Beloved, Vishnu, as an expression of their love for Him.