Cannabis (Cannabis sativa L.) has a long and multifaceted history as both a recreational substance and a subject of scientific inquiry. Its use dates back to 2700 BCE in Central Asia and China, where it played roles in religious ceremonies and as a source of hemp for clothing. Across ancient civilizations, from India’s Ayurvedic medicine to the Americas’ indigenous practices, cannabis was valued for its psychoactive and practical applications. Recreational use flourished in regions like South Asia and Africa, becoming integral to social customs. In the nineteenth century, Western scientists began studying its pharmacological properties, culminating in the isolation of tetrahydrocannabinol (THC) in the mid-twentieth century. The 1960s and 1970s saw a surge in recreational use, driven by countercultural movements, while scientific interest in its medicinal potential grew. Today, cannabis exists at the intersection of societal acceptance and scientific research, with debates over its legalization, regulation, and healthcare applications continuing. From ancient rituals to modern laboratories, cannabis has remained a plant of enduring significance, reflecting humanity’s fascination with its diverse properties and potential benefits.