Botanists 1st century
Lucius Iunius Moderatus Columella was an ancient Roman author of books on agriculture.
As a young man he was a soldier and tribune in the Roman army, but then devoted himself entirely to farming in Italy. Fully extant are De re rustica in 12 books, Columella's second and more complete study of farming and village life, and De arboribus ("On Trees"), which was part of an earlier work. Both books are written in a clear, non-academic style, the author clearly trying to instill in the reader a love of farming and the simple life.
Columella in his writings sometimes quotes from the works of Cato the Elder and Marcus Terentius Varrone, which all together provide an important source of knowledge about life at the time. The book On Farming, published in 1745, is an English translation of Columella's De re rustica and De arboribus.