After the revolution of '48 he was invited to lecture by the students of Heidelberg, and gave his course on The Essence of Religion, published in '51. In '57 he published Theogony from the Sources of Classical, Hebrew, and Christian Antiquity, and in '66 Theism, Freedom, and Immortality from the Standpoint of Anthropology.
"A Biographical Dictionary of Freethinkers of All Ages and Nations"
Joseph Mazzini Wheeler
The Theogony of Philo of Byblos took gods and myths from that country, and at Heliopolis Hadad was honored "according to Egyptian rather than Syrian rite."
"The Oriental Religions in Roman Paganism"
Franz Cumont
From this time they sacrificed using the names of the gods, and from the Pelasgians the Hellenes afterwards received them: 53, but whence the several gods had their birth, or whether they all were from the beginning, and of what form they are, they did not learn till yesterday, as it were, or the day before: for Hesiod and Homer I suppose were four hundred years before my time and not more, and these are they who made a Theogony for the Hellenes and gave the titles to the gods and distributed to them honours and arts, and set forth their forms: but the poets who are said to have been before these men were really in my opinion after them.
"The History Of Herodotus Volume 1(of 2)"
Herodotus