In it, he exempted widows and orphans from taxes; compelled the city to pay funeral expenses (including the ritual food and drink libations for the journey of the dead into the lower world); and decreed that the rich must use silver when purchasing from the poor, and if the poor does not wish to sell, the powerful man (the rich man or the priest) cannot force him to do so.

In the seventh year of his reign, Uruk fell under the leadership of Lugal-zage-si, énsi of Umma, who ultimately annexed most of the territory of Lagash and established the first reliably documented kingdom to encompass all of Sumer.

The destruction of Lagash was described in a lament (possibly the earliest recorded example of what would become a prolific Sumerian literary genre), which stressed that "the men of Umma ... committed a sin against Ningirsu.

... Offence there was none in Urukagina, king of Girsu, but as for Lugal-Zage-Si, governor of Umma, may his goddess Nisaba make him carry his sin upon his neck".

In the seventh year of his reign, Uruk fell under the leadership of Lugal-Zage-Si, énsi of Umma, who ultimately annexed most of the territory of Lagash and established the first reliably documented kingdom to encompass all of Sumer.

The destruction of Lagash was described in a lament (possibly the earliest recorded example of what would become a prolific Sumerian literary genre), which stressed that: "the man of Umma (Lugalzagesi) ... committed a sin against Ningirsu.