Which phrase was not an achievement of the government of chandragupta maurya's empire? formed a highly organized bureaucracy built a system of roads and harbors for trade established courts to ensure justice for the weak expanded into southern india to control trade routes

HAN DYNASTY WAS THE LONGEST REIGNING IMPERIAL DYNASTY OF CHINA

FIRST KNOWN PAPER-MAKING PROCESS WAS INVENTED BY CAI LUN OF HAN DYNASTY

THE FAMOUS SILK ROAD WAS ESTABLISHED DURING THEIR REIGN

Summed up the Han made scientific advancements such as the invention of paper, use of water clocks and sundials to measure time, and development of a seismograph