# Cc. Ādi 3.29 > এত ভাবি’ কলিকালে প্রথম সন্ধ্যায় । > অবতীর্ণ হৈলা কৃষ্ণ আপনি নদীয়ায় ॥২৯॥ ## Text > eta bhāvi' kali-kāle prathama sandhyāya > avatīrṇa hailā kṛṣṇa āpani nadīyāya ## Synonyms *eta*—thus; *bhāvi'*—thinking; *kali-kāle*—in the Age of Kali; *prathama*—first; *sandhyāya*—in the junction; *avatīrṇahailā*—descended; *kṛṣṇa*—Lord Kṛṣṇa; *āpani*—Himself; *nadīyāya*—in Nadia. ## Translation **Thinking thus, the Personality of Godhead, Śrī Kṛṣṇa Himself, descended at Nadia early in the Age of Kali.** ## Purport The *prathama-sandhyā* is the beginning of the age. According to astronomical calculation, the age is divided into twelve parts. The first of these twelve divisions is known as the *prathama-sandhyā.* The *prathama-sandhyā* and *śeṣa-sandhyā,* the last division of the preceding age, form the junction of the two ages. According to the *Sūrya-siddhānta,* the *prathama-sandhyā* of Kali-yuga lasts 36,000 solar years. Lord Caitanya appeared in the *prathama-sandhyā* after 4,586 solar years of Kali-yuga had passed.