The first recorded proposal for a decimal-based unit of length was the universal measure unit proposed by the English philosopher John Wilkins in 1668.

The idea of a metric system was proposed by John Wilkins, first secretary of the Royal Society of London in 1668.

John Wilkins FRS ( 1 January 1614 – 19 November 1672 ) was an English clergyman, natural philosopher and author, as well as a founder of the Invisible College and one of the founders of the Royal Society, and Bishop of Chester from 1668 until his death.

A serious effort was made in 1668 to secure a scheme of comprehension, with William Bates, Richard Baxter and Thomas Manton for the dissenters meeting Wilkins and Hezekiah Burton.

Nevertheless, Ashley joined Arlington and Buckingham, as well as John Wilkins, Bishop of Chester, in introducing government-backed bills in October 1667 and February 1668 to include moderate dissenters within the Church of England.

An Essay towards a Real Character, and a Philosophical Language ( London, 1668 ) is the best-remembered of the numerous works of John Wilkins, in which he expounds a new universal language, meant primarily to facilitate international communication among scholars, but envisioned for use by diplomats, travelers, and merchants as well.

The desire for a language more perfect than any natural language had been expressed before Leibniz by John Wilkins in his An Essay towards a Real Character and a Philosophical Language in 1668.

Other 17th-century proposals for a ' philosophical ' ( i. e. universal ) language include those by Francis Lodwick, Thomas Urquhart ( possibly parodic ), George Dalgarno ( Ars signorum, 1661 ), and John Wilkins ( An Essay towards a Real Character and a Philosophical Language, 1668 ).

Work on philosophical languages was pioneered by Francis Lodwick ( A Common Writing, 1647 ; The Groundwork or Foundation laid ( or So Intended ) for the Framing of a New Perfect Language and a Universal Common Writing, 1652 ), Sir Thomas Urquhart ( Logopandecteision, 1652 ), George Dalgarno ( Ars signorum, 1661 ), and John Wilkins ( An Essay towards a Real Character, and a Philosophical Language, 1668 ).

* Lewis, Rhodri, The efforts of the Aubrey correspondence group to revise John Wilkins ’ Essay ( 1668 ) and their context, Historiographia Linguistica 28 ( 2001 ), 331 – 364.

British scientists, philosophers and engineers have been at the forefront of the development of metrication – in 1668 John Wilkins first proposed a coherent system of units of measure, in 1861 a committee of the British Association for Advancement of Science ( BAAS ), including William Thomson ( later Lord Kelvin ), James Clerk Maxwell and Joule among its members, defined various electrical units in terms of metric rather than imperial units, and in the 1870s Johnson, Matthey & Co manufactured the international prototype metre and kilogram.

" Commodius vicus " refers to Giambattista Vico ( 1668 – 1744 ), who proposed a theory of cyclical history in his work " La Scienza Nuova " ( The New Science ).

* James Joyce was influenced by Giambattista Vico ( 1668 – 1744 ), an Italian philosopher who proposed a theory of cyclical history in his major work, New Science.

When Isaac Newton built the first reflecting telescope in 1668 he skipped using a parabolic mirror because of the difficulty of fabrication, opting for a spherical mirror.

The addition of reinforcing tie beams above the crossing, designed by Christopher Wren in 1668, arrested further deformation.

The Sheldonian Theatre, located in Oxford, England, was built from 1664 to 1668 after a design by Christopher Wren for the University of Oxford.

A tradition-first published by Christopher Sandius in 1684 in his book Bibliotheca antitrinitariorum and Andrzej Wiszowaty in 1668 in his book Narratio Compendiosa-and amplified by subsequent writers makes him a leading spirit in alleged theological conferences called the Collegia Vicentina at Vicenza about 1546-1547.

* Netherlands-where Andrzej Wiszowaty Sr. published the Bibliotheca Fratrum Polonorum quos Unitarios vocant ( 1668 ) and Christopher Sand published the Bibliotheca antitrinitariorum ( 1684 ).

These and others then appeared as Vol. III-V of Frans Kuyper's Bibliotheca Fratrum Polonorum quos Unitarios vocant (" Library of the Polish Brethren called Unitarians ") Amsterdam 1668 Crell also featured in Christopher Sand's bibliography and biographical collection Bibliotheca antitrinitariorum ( 1684 ).

*** Christopher, Sir, Master Shipwright, Woolwich and Deptford ( 1652 – 1668 ), born 1620, died 1668, married Ann ( unknown maiden name, died 1679 )

Christopher Codrington ( 1668 – 7 April 1710 ), British soldier, bibliophile and colonial governor, was born on the island of Barbados, West Indies, in 1668.

From 1661 until 1668 Wren's life was based in Oxford, although his attendance at meetings of the Royal Society meant that he had to make occasional trips to London.

Thus, John Dryden, among many others, compares the " irregular " Shakespeare with the " regular " Ben Jonson in his Essay of Dramatick Poesie ( 1668 ), and makes use of the unity of time in this passage criticizing Shakespeare's history plays:

The Danish formed a Board of Trade in 1668 and secured a commercial treaty with Britain, providing for the unmolested settlement of uninhabited islands, in July of 1670.

Though Killigrew was not officially a jester, Samuel Pepys in his famous diary does call Killigrew " The King's fool and jester, with the power to mock and revile even the most prominent without penalty " ( 12 February 1668 ).

An English Pikeman ( 1668 ), with steel cap, corselet, and tassets.

Although England, the Dutch Republic and Sweden had signed a Triple Alliance against France in 1668 to prevent that country from occupying the Spanish Netherlands, Charles II of England signed the secret Treaty of Dover with France in 1670, entailing that England would join Louis XIV of France in a punitive campaign against the United Provinces.

In 1668 Charles II incorporated Little Yarmouth in the borough by a charter which with one brief exception remained in force until 1703, when Anne replaced the two bailiffs by a mayor.

Because of religious differences with Governor John Endicott, Beverly would be set off and officially incorporated in 1668, when it was named " Beverley " after Beverley in Yorkshire, England.

In 1664, the English took possession of New Amsterdam with little or no resistance, and in 1668 they confirmed a previous land patent by Nicolas Verlett.

Cavendish ’ s prose tale was published in 1666 and was republished with Observations upon Experimental Philosophy in 1668.

This claim conflicts with his gravestone in present-day Clinton, Connecticut note 5, as well as the period he spent as a student at Harvard ( 1664 to 1668 ).

His accession led to a protracted war ( the Portuguese Restoration War ) with Spain, which only ended with the recognition of Portuguese independence in a subsequent reign ( 1668 ).

Although the peace Treaty of Lisbon with Portugal in 1668 ceded the North African enclave of Ceuta to Spain, it was little solace for the loss of Portugal and the Portuguese colonies by Philip IV to the Duke of Braganza's successful revolt against 60 years of Habsburg rule.

There was a second edition in 1655, a third in 1661 ( identical with that of 1664 ), a fourth in 1668 and a fifth in 1676.

In the 1660s Fausto Sozzini's grandson Andreas Wiszowaty and great-grandson Benedykt Wiszowaty published the nine-volume Biblioteca Fratrum Polonorum quos Unitarios vocant 1668 in Amsterdam, with the works of F. Sozzini, the Austrian Johann Ludwig von Wolzogen, the Poles Johannes Crellius, Jonasz Szlichtyng, and Samuel Przypkowski.

It developed as a compendium ( with multiple authorship ) from Philosophical Considerations Touching the Being of Witches and Witchcraft ( 1666 ), addressed to Robert Hunt, a Justice of the Peace active from the 1650s against witches in Somerset ( where Glanvill had his living at Frome ); the 1668 version A Blow at Modern Sadducism promoted the view that the judicial procedures such as Hunt's court offered should be taken as adequate tests of evidence, because to argue otherwise was to undermine society at its legal roots.

His illicit connection with the Countess of Shrewsbury led to a duel with her husband at Barn Elms on 16 January 1668, in which the Earl of Shrewsbury was fatally wounded.

Another object of jealousy to Arlington was Sir William Temple, who achieved a great popular success in 1668 by the conclusion of the Triple Alliance ; Arlington endeavoured to procure his removal to Madrid, and entered with alacrity into Charles's plans for destroying the whole policy embodied in the treaty, and for making terms with France.

" It was now, too, that he published the first part of his vast work upon the Epistle to the Hebrews, together with his Practical Exposition upon Psalm 130 ( 1668 ) and his searching book on Indwelling Sin.

Soon afterwards Condé, now reconciled with the king, rivaled Turenne's success by the rapid conquest of the Franche-Comté, shortly before the end the War of Devolution in February 1668.

This period also features an example of the independent standing of the Temple ; in 1668 the Lord Mayor of London attempted to enter the Temple with his sword, something that was his right in the City but not permitted within the Temple.