On either side of the wall

Icon picture – Geographic location of the great wall. Courtesy: wikipedia (This blog was co-created by Prof. Saravan and Dr. Dhanya Pramod. Many thanks to Prof. Vishal who sparked the idea for this blog). The Great Wall of China is the largest man-made structure, visible from space. Many generations of labourers, peasants and prisoners had worked on it for centuries. The earliest known construction was in 3000 BCE. First there were primitive