The 3rd century BCE was a period that spanned from 300 to 201 BCE. It was marked by significant developments in various regions, including the rise of powerful empires such as the Maurya Empire in India and the Ptolemaic Kingdom in Egypt. This century also saw the spread of Hellenistic culture following the conquests of Alexander the Great, influencing art, science, and philosophy. In addition to political changes, the 3rd century BCE was notable for advancements in technology and thought. The invention of the astrolabe and improvements in mathematics were significant during this time. Philosophical schools, such as Stoicism and Epicureanism, emerged, shaping ideas that would influence future generations.