The three Rs

The three Rs (as in the letter R) refers to the foundations of a basic skills-oriented education program within schools: reading, writing and arithmetic. It appeared in print as a space-filler in "The Lady's Magazine" for 1818, although it is widely quoted as arising from a phrase coined in a toast given by Sir William Curtis, Member of Parliament, in about 1825. Since its original creation, many others have used the term to describe other trifecta.

Origin and meaning

The original phrase "the Three Rs" came from a previous speech made by Sir William Curtis in 1795.

From reading and writing comes the idea in modern education of literacy, by which we generally mean having the ability to understand ideas expressed through the medium of words. From reckoning and figuring comes the modern idea of numeracy which means being able to understand ideas expressed in the medium of mathematics. There is no single word, equivalent to literacy or numeracy, that expresses wrighting and roughing (that is the ability to make – as in wheelwright, shipwright, Cartwright). In late 18th and early 19th century the role of schools in preparing children to work in manufacturing industry would have been seen to have had a greater vocational and economic relevance than it would today.

The Three Rs (animals)

The Three Rs (3Rs) in relation to science are guiding principles for more ethical use of animals in testing. They were first described by W. M. S. Russell and R. L. Burch in 1959. The 3Rs are:

The 3Rs have a broader scope than simply encouraging alternatives to animal testing, but aim to improve animal welfare and scientific quality where the use of animals cannot be avoided. In many countries, these 3Rs are now explicit in legislation governing animal use.

It is usual to capitalise the first letter of each of the three 'R' principles (i.e. 'Replacement' rather than 'replacement') to avoid ambiguity and clarify reference to the 3Rs principles.

David's Mighty Warriors

David's Mighty Warriors (also known as David's Mighty Men or the Gibborim) are a group of men in the Bible who were singled out by an appendix of the Books of Samuel. The text (2 Samuel 23:8–39) divides them into the "Three", of which there are three, and "Thirty", of which there are more than thirty. The text explicitly states that there are 37 individuals in all, but it is unclear whether this refers to The Thirty, which may or may not contain The Three, or the combined total of both groups. The text refers to The Three and The Thirty as though they were both important entities, and not just an arbitrary list of three or 30-plus significant men.

Some textual scholars regard the passages referring to The Three and The Thirty as having come from either a source distinct to the main sources in the Books of Samuel, or being otherwise out of place. Since parts of the text have distinct stylistic differences from other portions—appearing as a list, as a series of character introductions, or as a flowing narrative—Some suspect that the passages may themselves be compiled from multiple source documents. Further, as 2 Samuel 23:23–24 reads "...David put him in command of his bodyguard. Asahel, brother of Joab. Among the thirty were...", the text is regarded as corrupted, and the middle of verse 23:24 (between the words Joab and Among) is generally presumed to have been lost (some translations move Among the thirty were to be before Asahel, which smooths over the issue).