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4,500-Year-Old 'Harappan Master of the Royal Clay-Mortar Standards' Archive and Intact Mixture-Ratio Tablets Uncovered in Haryana

📅 April 12, 2026 📰 Archaeology World News
4,500-Year-Old 'Harappan Master of the Royal Clay-Mortar Standards' Archive and Intact Mixture-Ratio Tablets Uncovered in Haryana

Archaeologists at a newly identified site in the Ghaggar-Hakra basin have unearthed an unprecedented administrative wing dedicated to the standardization of construction materials. The discovery includes a cache of terracotta tablets belonging to the 'Master of the Royal Clay-Mortar Standards,' detailing precise mathematical ratios for mixing bitumen, lime, and silt to ensure the longevity of urban fortifications and drainage systems.

The excavation team from the Archaeological Survey of India noted that the site also contained specialized measuring vats and stone-lined pits for experimental batches. These findings suggest that Mature Harappan urban planning relied on a centralized regulatory body to maintain the structural integrity of their iconic brick architecture across distant outposts.

Original source: Archaeology World News