Kamil Zvelebil in the context of "Nakkīraṉãr"

The Eight Anthologies, known as Eṭṭuttokai (Tamil: எட்டுத்தொகை) or "Eight Collections" in the literature, is a classical Tamil poetic work that forms part of the Eighteen Greater Texts (Patiṉeṇmēlkaṇakku) anthology series of the Sangam Literature. The Eight Anthologies and its companion anthology, the Ten Idylls (Pattuppāṭṭu), is the oldest available Tamil literature. According to Kamil Zvelebil, a scholar of Tamil literature and history, dating these Eight Anthologies or their relative chronology is difficult, but the scholarship so far suggested that the earliest layers were composed sometime between the 1st century BCE and 2nd century CE, while the last layers were completed between 3rd and 5th century CE.

The Akananuru (Tamil: அகநானூறு, Akanāṉūṟu, literally "four hundred [poems] in the akam genre"), sometimes called Nedunthokai (lit. "anthology of long poems"), is a classical Tamil poetic work and one of the Eight Anthologies (Ettuthokai) in the Sangam literature. It is a collection of 400 love poems composed by 144 poets, except three poems which are by anonymous author(s). The poems range between 13 and 31 lines, and are long enough to include more details of the subject, episode and its context. According to Kamil Zvelebil – a Tamil literature and history scholar, they are "one of the most valuable collections" from ancient Tamil history perspective.

The Akananuru anthology is notable for its mathematical arrangement: the odd number poems are dedicated to palai (arid landscape); poem number ten and its multiples (10, 20, 30, etc., up to 400) are neytal (coastal landscape); poems bearing number 2 and then in increments of 6 followed by 4 (that is number 8, 12, 18, 22, 28, etc.) belong to the kuṟiñci (mountainous landscape); poems bearing number 4 and then in increments of 10 (14, 24, 34, 44, etc.) are mullai (pastoral forests); poems with number 6 and then in increments of 10 (16, 26, 36, etc.) are marutam (riverine farmlands). The anthology was compiled by Uruttiracanman, the son of Maturai Uppurikuti Kilan under the patronage of the Pandyan king Ukkiraperuvaluti. The Akananuru poems offer many valuable cultural insights as well as historically significant evidence and allusions. For example, poem 69, 281 and 375 mention the Maurya Empire, poems 251 and 265 allude to the Nandas, the poem 149 mentions Greek-Romans (Yavanas) as trading gold for pepper through Muziris – an ancient Kerala port near Kochi, and a number of poems echo the Hindu puranic legends about Parasurama, Rama, Krishna and others.

The Purananuru (Tamil: புறநானூறு, Puṟanāṉūṟu, literally "four hundred [poems] in the genre puram"), sometimes called Puram or Purappattu, is a classical Tamil poetic work and traditionally the last of the Eight Anthologies (Ettuthokai) in the Sangam literature. It is a collection of 400 heroic poems about kings, wars and public life, of which two are lost and a few have survived into the modern age in fragments. The collected poems were composed by 157 poets, of which 14 were anonymous and at least 10 were women. This anthology has been variously dated between 1st century BCE and 5th century CE, with Kamil Zvelebil, a Tamil literature scholar, dating predominantly all of the poems of Purananuru sometime between 2nd and 5th century CE. Nevertheless, few poems are dated to the period of 1st century BCE.

The Purananuru anthology is diverse. Of its 400 poems, 138 praise 43 kings – 18 from the Chera dynasty, 13 Chola dynasty kings, and 12 Early Pandya dynasty kings. Another 141 poems praise 48 chieftains. These panegyric poems recite their heroic deeds, as well as another 109 poems that recount deeds of anonymous heroes, likely of older Tamil oral tradition. Some of the poems are gnomic in nature, which have attracted unrealistic attempts to read an ethical message, states Zvelebil. The poetry largely focuses on war, means of war such as horses, heroic deeds, widowhood, hardships, impermanence, and other effects of wars between kingdoms based along the rivers Kaveri, Periyar and Vaigai.

Kuṟuntokai (Tamil: குறுந்தொகை, meaning the short-collection) is a classical Tamil poetic work and traditionally the second of the Eight Anthologies (Ettuthokai) in the Sangam literature. The collection belongs to the akam (love) category, and each poem consists of 4 to 8 lines each (except poem 307 and 391 which have 9 lines). The Sangam literature structure suggests that the original compilation had 400 poems, but the surviving Kuruntokai manuscripts have 402 poems. According to Takanobu Takahashi – a Tamil literature scholar, these poems were likely composed between 100 CE and 300 CE based on the linguistics, style and dating of the authors. Kamil Zvelebil, a Tamil literature and history scholar, states that the majority of the poems in the Kuruntokai were likely composed between the 1st century BCE and the 2nd century CE. The Kuruntokai manuscript colophon states that it was compiled by Purikko (உரை), however nothing is known about this compiler or the patron.

The Kuruntokai poems are credited to 205 ancient poets. Of these, according to Kamil Zvelebil, about 30 poets names are of North Indian roots (Indo-Aryan) and rest are of Dravidian roots. The poems include Sanskrit loan words, contain 27 allusions to historical events and there are 10 borrowings from this work into the two famed post-Sangam Tamil works: Tirukkural and Silappatikaram.

Natrinai (Tamil: நற்றிணை meaning excellent tinai), is a classical work of Tamil literature, and traditionally the first of the Eight Anthologies (Ettuthokai) in Sangam literature. The collection – sometimes spelled as Natrinai or Narrinai – contains both akam (love) and puram (war, public life) category poems. The anthology includes 400 poems, mainly consisting of 9 to 12 lines, with a few ranging from 8 to 13 lines. According to Takanobu Takahashi, a Tamil literature scholar, the Natrinai poems were likely composed between 100–300 CE, based on linguistic features, style, and the dating of their authors. Kamil Zvelebil, another scholar of Tamil literature and history, dates some poems to the 1st century BCE. According to its manuscript colophon, Natrinai was compiled under the patronage of a Pandyan king named Pannatu Tanta Pantiyan Maran Valuti, though the compiler remains anonymous.

The poems are attributed to 175 ancient poets. Two of the poems are credited to the patron king. According to Zvelebil, the collection includes a few Sanskrit loanwords and makes 59 references to historical events. Several lines were later borrowed into renowned post-Sangam Tamil works such as the Tirukkural, Silappatikaram, and Manimekalai. The Tamil legend of Kannagi (or Kannaki), who tore off her breast in protest of her husband's wrongful execution, appears in Natrinai 312.

Thiruvalluvar, commonly known as Valluvar, was an Indian poet and philosopher. He is best known as the author of the Tirukkuṟaḷ, a collection of couplets on ethics, political and economic matters, and love. The text is considered an exceptional and widely cherished work of Tamil literature.

Almost no authentic information is available about Valluvar, states Kamil Zvelebil – a scholar of Tamil literature. His life and likely background are variously inferred from his literary works by different biographers. There are unauthentic hagiographic and legendary accounts of Valluvar's life, and all major Indian religions, as well as Christian missionaries of the 19th century, have tried to claim him as secretly inspired (crypto-) or originally belonging to their tradition. Little is known with certainty about his family background, religious affiliation, or birthplace. He is believed to have lived at least in the town of Mylapore (a neighbourhood of the present-day Chennai), and his floruit is dated variously from fourth century BCE to early fifth century CE, based on the traditional accounts and the linguistic analyses of his writings. Kamil Zvelebil infers the Tirukkuṟaḷ and Valluvar are best dated to around 500 CE.

The Paripādal (Tamil: பரிபாடல், meaning the paripadal-metre anthology) is a classical Tamil poetic work and traditionally the fifth of the Eight Anthologies (Ettuthokai) in the Sangam literature. According to Tolkappiyam, Paripadal is a kind of verse dealing only with love (akapporul) and does not fall under the general classification of verses. It has a minimum of 25 lines and a maximum of 400 lines. It is an "akam genre", odd and hybrid collection which expresses love in the form of religious devotion (Bhakti) to gods and goddesses predominantly to Maha Vishnu and Murugan. According to Kamil Zvelebil, a Tamil literature and history scholar. This is the only anthology in the Eight Anthologies collection that is predominantly religious, though the other seven anthologies do contain occasional mentions and allusions to gods, goddesses and legends.