National Events Calendar

Happening this week

Sex Politics and Religion Discussion Group

Virtual meeting

San Francisco Regional Mensa

Sex, politics, and religion: Everything you are not supposed to discuss at the dinner table. Tune in to this free online event for those who would like to participate in a group that fosters critical thinking and considerate, civil, discussion that is open regarding subject matter.

Starts
 August 3, 2025
 4:00 PM America/Los Angeles (GMT-08:00)

Ends
 December 31, 2027
 5:00 PM America/Los Angeles (GMT-08:00)

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Discover upcoming events

PANDEMIC 2025.... SPACE: The Final Fun-tier!

Regional Gathering

Metropolitan Washington Mensa

Welcome to Space! The Final Fun-tier, where we embark on an intergalactic journey filled with innovation, creativity, and, of course, fun! As we gather in this cosmic arena, prepare to launch into a universe of ideas that will challenge your imagination and expand your horizons.

Starts
 August 8, 2025
 3:00 PM US/Eastern (GMT-05:00)

Ends
 August 10, 2025
 2:00 PM US/Eastern (GMT-05:00)

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American Mensa Committee Special Meeting

Committee Meeting

The American Mensa Committee will hold a Special Meeting on Aug. 13 at 7 p.m., Central time. The meeting will be an Executive Session and will not be livestreamed.

Starts
 August 13, 2025
 7:00 PM US/Central (GMT-06:00)

Ends
 August 13, 2025
 9:00 PM US/Central (GMT-06:00)

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Technology of Space

Webinar

San Francisco Regional Mensa

Learn about Lockheed Martin and their innovative projects for Space exploration — including a Lightning Mapper, Gravity Probe-B (to confirm Einstein's gravitational theories), high-energy particle spectrometers, and more!

Starts
 August 17, 2025
 2:30 PM America/Los Angeles (GMT-08:00)

Ends
 August 17, 2025
 5:00 PM America/Los Angeles (GMT-08:00)

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Irish Mensa Lecture & Discussion: The Future of Immunity

Virtual meeting

No group assigned

Knowledge has led to immune-based therapies that would have seemed like science fiction to our grandparents: monoclonal antibodies, T-cell therapies, anti-cancer vaccines, precision immune suppression – the list is endless. In this lecture, we look to the future and ask, "What next for immunity?"

Starts
 August 18, 2025
 1:00 PM US/Central (GMT-06:00)

Ends
 August 18, 2025
 3:00 PM US/Central (GMT-06:00)

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Theodore Talk - Spotting the Signs & Preventing Child Sex Trafficking

Virtual meeting

No group assigned

This Theodore Talk will focus on how children are lured into the dark world of sex trafficking and exploitation. Attendees will identify the dangers of technology, including strategies used by child predators, discover how to identify a child in trouble and learn some best practices on how to be a child's trusted adult or a trusted child advocate.

Starts
 August 24, 2025
 2:30 PM US/Central (GMT-06:00)

Ends
 August 24, 2025
 4:00 PM US/Central (GMT-06:00)

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RechaRGe 2025

Community Event

Mensa of Northeastern New York

Come join us at the Northeast's only 4-day RG! For the cost of a regular 3-day RG, you get an extra day to hang out with friends and party!

Starts
 August 29, 2025
 3:00 PM US/Eastern (GMT-05:00)

Ends
 September 1, 2025
 11:00 AM US/Eastern (GMT-05:00)

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American Mensa Committee Meeting

Committee Meeting

A meeting of the American Mensa Committee will be held at the National Office in Hurst, TX, Sept. 13, starting at 10 a.m., Central time.

Starts
 September 13, 2025
 10:00 AM US/Central (GMT-06:00)

Ends
 September 13, 2025
 5:00 PM US/Central (GMT-06:00)

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Inquiring Minds: Notable Women Scientists Who Fled Nazi Germany and Overcame Further Obstacles

Virtual meeting

No group assigned

Author Olivia Campbell will recount the stories of four women scientists who were forced to flee Nazi Germany to stay alive, and then had to fight sexism in order to continue to thrive and make remarkable contributions to science.

Starts
 September 14, 2025
 2:00 PM US/Eastern (GMT-05:00)

Ends
 September 14, 2025
 3:00 PM US/Eastern (GMT-05:00)

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Irish Mensa Lecture & Discussion: Democracy and International Criminal Justice in the Fragile World of the Rule of Law

Virtual meeting

No group assigned

This lecture will examine the pros and cons of democracy in today's world, focusing on the importance of domestic and international rule of law to maintain democratic ideals, which are fragile in times of conflict. There will be examples given, highlighting the current War in Ukraine and the political situation in the United States, the influence of other players, and the legacy of the Cold War.

Starts
 September 15, 2025
 1:00 PM US/Central (GMT-06:00)

Ends
 September 15, 2025
 3:00 PM US/Central (GMT-06:00)

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Why the Scopes Trial (1925) is Still Relevant

Webinar

San Francisco Regional Mensa

Trial of the Century: Tennessee vs. John T. Scopes. The first major sally against the teaching of evolution in the U.S., Scopes is wrongly perceived as a victory for evolution over the forces of obscurantism, but the full story is much more complex and interesting, involving science, religion, law, education, politics, celebrities, modern communications, and the politicization of science.

Starts
 September 21, 2025
 2:30 PM US/Central (GMT-06:00)

Ends
 September 21, 2025
 5:00 PM US/Central (GMT-06:00)

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Peachtreat

Regional Gathering

Mensa In Georgia

Join us for the Atlanta Regional Gathering! This Year's Theme is History, AI and the Future.

Starts
 September 26, 2025
 4:00 PM US/Eastern (GMT-05:00)

Ends
 September 28, 2025
 1:00 PM US/Eastern (GMT-05:00)

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Theodore Talk - Antisemitism: Evolution and Escalation

Virtual meeting

No group assigned

Dr. Shelly Cline, Historian and Director of Education at the Midwest Center for Holocaust Education, will examine the evolution of antisemitism from religiously motivated antipathy in early modern times to the economic and pseudo-scientific antisemitism of the 19th and 20th centuries, and finally to the politically driven antisemitism of today.

Starts
 September 28, 2025
 2:30 PM US/Central (GMT-06:00)

Ends
 September 28, 2025
 4:00 PM US/Central (GMT-06:00)

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A Trip to the Center of our Galaxy

Webinar

San Francisco Regional Mensa

The heart of the Milky Way is home to Sagittarius A*, a supermassive black hole approximately four million times the mass of the Sun. Largely quiet today, it is surrounded by a turbulent sea of gas, dust, and exotic objects that could one day trigger dramatic outbursts. Join us in exploring how molecular hydrogen manages to survive intense ultraviolet radiation and introduces a newly identified class of enigmatic objects orbiting perilously close to the black hole.

Starts
 October 19, 2025
 2:30 PM America/Los Angeles (GMT-08:00)

Ends
 October 19, 2025
 5:00 PM America/Los Angeles (GMT-08:00)

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Irish Mensa Lecture & Discussion: Galileo's Journey to the Underworld: The Case for Interdisciplinary Thinking

Virtual meeting

No group assigned

In 1588, the young Galileo delivered some lectures that were impressive enough to secure him a mathematics professorship at the University of Pisa. His subject? The geometry of Dante's Inferno. In Gresham College's Annual Provost's Lecture, Professor Sarah Hart looks at some of Galileo's deductions, and how the questions raised may have influenced his later mathematical research.

Starts
 October 20, 2025
 1:00 PM US/Central (GMT-06:00)

Ends
 October 20, 2025
 3:00 PM US/Central (GMT-06:00)

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Theodore Talk - U.S. First Ladies: More Than the Women Behind the Men

Virtual meeting

No group assigned

Dr. Diana B. Carlin, Professor Emerita of Communication at Saint Louis University and co-author of Remember the FIRST Ladies: The Legacies of America's History-Making Women, will take you behind the scenes in the Washingtons' President's House and the White House and inform you how these women helped make history.

Starts
 October 26, 2025
 2:30 PM US/Central (GMT-06:00)

Ends
 October 26, 2025
 4:00 PM US/Central (GMT-06:00)

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HalloweeM 49 - It's Hip To Be (7) Squared!

Regional Gathering

Chicago Area Mensa

Join us for the largest RG! Flashback to the awesome 80s with four days of RG fun featuring multiple speaker tracts, lavish hospitality, a pun-tastic costume contest, Pretentious Drinking, Epicurean Experience, 24-hour game room, tournaments, kid's programs, babysitting, and much more!

Starts
 October 30, 2025
 4:00 PM US/Central (GMT-06:00)

Ends
 November 2, 2025
 2:00 PM US/Central (GMT-06:00)

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Boston Mensa's Pilgrimage RG

Regional Gathering

Boston Mensa

Mark your calendars for Pilgrimage! 2025 – November 14-16 at the Andover Massachusetts Doubletree Hotel.

Starts
 November 14, 2025
 4:00 PM US/Eastern (GMT-05:00)

Ends
 November 16, 2025
 12:00 PM US/Eastern (GMT-05:00)

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Irish Mensa Lecture & Discussion: Changes in the Concept of Autism

Virtual meeting

No group assigned

While still defined by social and communication difficulties, rigid interests, and repetitive behaviors, the autism spectrum is far wider, and the historical under-diagnosis of women and girls is being addressed. This lecture explores how our understanding of autism has changed, and directions for future research.

Starts
 November 17, 2025
 1:00 PM US/Central (GMT-06:00)

Ends
 November 17, 2025
 3:00 PM US/Central (GMT-06:00)

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The Feast of Pleasures and Delights

Regional Gathering

North Texas Mensa

Starts
 November 27, 2025
 5:00 PM US/Central (GMT-06:00)

Ends
 November 30, 2025
 3:00 PM US/Central (GMT-06:00)

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American Mensa Committee Meeting

Committee Meeting

A virtual meeting of the American Mensa Committee will be held on Saturday, Dec. 6, starting at 10 a.m., Central time.

Starts
 December 6, 2025
 10:00 AM US/Central (GMT-06:00)

Ends
 December 6, 2025
 5:00 PM US/Central (GMT-06:00)

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Irish Mensa Lecture & Discussion: The Man Who Invented Christmas: Film Adaptations of Dickens' A Christmas Carol

Virtual meeting

No group assigned

"A Christmas Carol" (1843) is the most filmed and televised of Dickens' works. Many will warmly remember the 1951 Alastair Sim version, but how many are aware of "Carol for Another Christmas" (1964), a propaganda film produced in support of the UN, or "The Passions of Carol" (1975), which attempted to highlight the evil of the pornography industry? How do the different versions reflect the politics and culture of their own particular times? What makes a good Carol movie? Is it truth to the original or is it something else?

Starts
 December 15, 2025
 1:00 PM US/Central (GMT-06:00)

Ends
 December 15, 2025
 3:00 PM US/Central (GMT-06:00)

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StaRGazing 2026

Regional Gathering

Greater Los Angeles Area Mensa

Join us for the Greater Los Angeles Area Mensa Regional Gathering — featuring speakers, games, entertainment, a kids' track, and meals included!

Starts
 February 13, 2026
 3:00 PM America/Los Angeles (GMT-08:00)

Ends
 February 15, 2026
 3:00 PM America/Los Angeles (GMT-08:00)

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Irish Mensa Lecture & Discussion: Calendar Curiosities for February 29

Virtual meeting

No group assigned

Did Archbishop Whitgift really die on February 29, 1603? Why are there more Friday 13th's now than in the Middle Ages? How did a famous composer (who died on Friday 13th) manage to write all his 39 operas before his ninth birthday? And how can we explain the mysterious date of the death of St. Teresa of Avila? This lecture will cast light upon the quirks of our calendar, and you'll also learn a quick way to work out the day of the week of any given date.

Starts
 February 16, 2026
 1:00 PM US/Central (GMT-06:00)

Ends
 February 16, 2026
 3:00 PM US/Central (GMT-06:00)

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Party at Sea in Southeast Asia

Multi-Day Meeting

HELL's M's, the Party SIG of American Mensa, is planning a Party at Sea! Join us on Norwegian Cruise Line's Norwegian Sun for an exotic trip to Southeast Asia.

Starts
 February 24, 2026
 12:00 PM Asia/Hong Kong (GMT+08:00)

Ends
 March 10, 2026
 1:00 AM Asia/Hong Kong (GMT+08:00)

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