Ancus Marcius vs Gwanggaeto the Great

Ancus Marcius founded the port city of Ostia at the mouth of the Tiber River. This colony served as Rome's primary naval base and commercial port, facilitating trade and military control over the Tyrrhenian Sea and the salt flats.

Ancus Marcius ordered the construction of the Pons Sublicius, the first bridge across the Tiber River in Rome. This wooden bridge improved transportation and communication between Rome and the Janiculum hill, and became a strategic military structure.

Ancus Marcius incorporated the Janiculum hill into the city of Rome, fortifying it with walls. This strategic hill on the west bank of the Tiber provided a defensive position and was used as a citadel against Etruscan threats.

Ancus Marcius established state-controlled salt works near Ostia, securing a vital resource for Rome. Salt was essential for food preservation and trade, and this monopoly generated revenue and ensured supply for the growing Roman population.

Ancus Marcius waged war against the Latin tribes, defeating them and expanding Roman territory. He annexed several Latin towns and forcibly relocated their populations to Rome, increasing the city's population and extending Roman hegemony over Latium.

Gwanggaeto the Great conquered the Lelang Commandery, a Chinese commandery located in the Korean peninsula. This victory eliminated Chinese influence in the region and brought the territory under Goguryeo control. It marked a significant expansion of Goguryeo's territory and power.

Gwanggaeto the Great launched campaigns against the Xianbei and Khitan nomadic confederations in Manchuria. He defeated them, securing Goguryeo's northern borders and expanding its influence into Manchuria. These campaigns demonstrated Goguryeo's military strength and protected its territory from nomadic incursions.

Gwanggaeto the Great led a military campaign that subjugated the Baekje kingdom, forcing it to become a vassal state of Goguryeo. He captured the Baekje capital, Hansung, and took the Baekje king as a hostage. This victory made Goguryeo the dominant power on the Korean peninsula.

After Gwanggaeto's death, his son King Jangsu erected a large stele in his honor at the site of his tomb in Ji'an, China. The stele is inscribed with a detailed account of Gwanggaeto's conquests and achievements. It is a crucial historical source for understanding Goguryeo's history and territorial extent.