Ruth Barcan Marcus

1921 - 2012

Photo of Ruth Barcan Marcus

Icon of person Ruth Barcan Marcus

Ruth Barcan Marcus (; born Ruth Charlotte Barcan; 2 August 1921 – 19 February 2012) was an American academic philosopher and logician best known for her work in modal and philosophical logic. She developed the first formal systems of quantified modal logic and in so doing introduced the schema or principle known as the Barcan formula. (She would also introduce the now standard "box" operator for necessity in the process.) Marcus, who originally published as Ruth C. Barcan, was, as Don Garrett notes "one of the twentieth century's most important and influential philosopher-logicians". Read more on Wikipedia

Since 2007, the English Wikipedia page of Ruth Barcan Marcus has received more than 117,961 page views. Her biography is available in 17 different languages on Wikipedia (up from 15 in 2019). Ruth Barcan Marcus is the 1,230th most popular philosopher (down from 1,112th in 2019), the 10,159th most popular biography from United States (down from 8,095th in 2019) and the 83rd most popular American Philosopher.

Memorability Metrics

  • 120k

    Page Views (PV)

  • 43.43

    Historical Popularity Index (HPI)

  • 17

    Languages Editions (L)

  • 3.79

    Effective Languages (L*)

  • 2.60

    Coefficient of Variation (CV)

Page views of Ruth Barcan Marcuses by language

Over the past year Ruth Barcan Marcus has had the most page views in the with 10,340 views, followed by Spanish (1,512), and French (1,177). In terms of yearly growth of page views the top 3 wikpedia editions are Pashto (113.37%), Swedish (103.92%), and Danish (72.48%)


Among philosophers, Ruth Barcan Marcus ranks 1,230 out of 1,267Before her are Michael Novak, Peter Geach, Antoinette Brown Blackwell, Richard David Precht, C. I. Lewis, and Alice von Hildebrand. After her are Raya Dunayevskaya, Norman Malcolm, Christine Korsgaard, Julia Annas, Will Kymlicka, and Chinmayananda Saraswati.

Most Popular Philosophers in Wikipedia

Go to all Rankings


Among people born in 1921, Ruth Barcan Marcus ranks 414Before her are Peggy Rea, Spartaco Bandinelli, R. K. Laxman, Franz Gabl, Jacques Friedel, and François Picard. After her are Johnny Otis, Gordon Thomas, Günther Bechem, Jerzy Stefan Stawiński, Róbert Antal, and Eeva-Liisa Manner. Among people deceased in 2012, Ruth Barcan Marcus ranks 422Before her are Tony Martin, Ian Burgess, Philippe Bugalski, Héctor Camacho, Terry Callier, and Mitch Lucker. After her are Johnny Otis, Abdelbaset al-Megrahi, Adam Yauch, Leszek Drogosz, Leila Denmark, and Jacqueline Mazéas.

Others Born in 1921

Go to all Rankings

Others Deceased in 2012

Go to all Rankings

In United States

Among people born in United States, Ruth Barcan Marcus ranks 10,159 out of 20,380Before her are Annabeth Gish (1971), Ailee (1989), Elizabeth Dole (1936), John Miller (1903), June Anderson (1952), and Leroy Burrell (1967). After her are Ray Collins (1889), Dan Osman (1963), Jesse Tyler Ferguson (1975), Noble Johnson (1881), Chris Ellis (1956), and Elaine de Kooning (1918).

Among PHILOSOPHERS In United States

Among philosophers born in United States, Ruth Barcan Marcus ranks 83Before her are Ralph Barton Perry (1876), Charles Hartshorne (1897), Roderick Chisholm (1916), Michael Novak (1933), Antoinette Brown Blackwell (1825), and C. I. Lewis (1883). After her are Norman Malcolm (1911), Christine Korsgaard (1952), Stephen Walt (1955), Peter Kreeft (1937), Rosemary Radford Ruether (1936), and Nel Noddings (1929).