Medieval Times
We do not know the exact answer, but scienctists approximate the late Carboniferous period; about 300 million years ago.
Heraldry emerged in the twelfth century when feudalism began, when knights needed to be identified with family lines and feudal social postitions, as friend or foe. The symbol worn on a tabard over the armor made this distinction possible.
later adulthood
The custom of knighthood began in the medieval times.
middle adulthood
Industrial revolution
At the end of the Wood land period begin
Renaissance art began during the Renaissance period. The Renaissance art period began in 1150 and lasted until about 1600.
Ultrasauros dinosaur fossils date from the late Jurassic period. Utahraptor dinosaur lived during the early Cretaceous period.
We just learned about this here in World History, The Elizabethian Era is the answer you're looking for
during wich prehistoric period did horticulture begin?
Sargon the Great ruled during the period around 2300 BC