Nihil novi nisi commune consensu ("Nothing new without the common consent") is the original Latin title of a 1505 act adopted by the Polish Sejm (parliament), meeting in the royal castle at Radom.

Nihil novi effectively established "nobles' democracy" in what came to be known as the Polish "Commonwealth [or, Republic] of the Nobility." That First Polish Republic would come to an end in 1795 with the Third and final Partition of the Polish-Lithuanian Commonwealth.

"Nihil novi," in this political sense, is interpreted in the vernacular as "Nothing about us without us" (in Polish, "Nic o nas bez nas").

The Latin expression, "nihil novi" ("nothing new"), had previously appeared in the Vulgate Bible phrase, "nihil novi sub sole" ("there is nothing new under the sun"), in Ecclesiastes 1:9.

The Sejm's 1505 Act of Nihil novi nisi commune consensu marked an important victory for Poland's nobility over her Kings. It forbade the King to issue laws without the consent of the nobility, represented by the Senat and Chamber of Deputies, except for laws governing royal cities, crown lands (królewszczyzny), mines, fiefdoms, royal peasants, and Jews.

Michael Cliffe (March 1904 – 9 August 1964) was a British clothing industry worker and politician, who was a Member of Parliament in inner London for six years. He was a constituency-focused member whose commitment was respected both in his constituency and at Westminster.

Cliffe, was born in Sheffield and went to Holliscroft School, leaving to go into the clothing industry as a tailor's presser. He was active in the National Union of Tailors and Garment Workers and was elected to the Union's National Executive. He moved to London to live in Finsbury where he became active in local politics as a member of the Labour Party; in 1949 he was elected to Finsbury Borough Council from West Finsbury ward, at the top of the poll in a six-member ward.

After local ward boundary changes, Cliffe was elected in Central ward from 1953, but then was elected an Alderman (his wife Sophia, née Whitesman, followed him onto the council); he remained an Alderman until his death. He was chairman of the Housing Committee, and when the building work was completed he was allocated a flat in the Golden Lane Estate. He was chosen as Mayor of Finsbury for the year 1956-1957 and was then Chairman of the Policy and Resources Committee (the unofficial Leader of the Council).