U.S. Politics

Please go to your Meetup account and make sure you have elected to receive "EVENT UPDATES FROM ORGANIZERS" so that we may e-mail you additional information on this and other events. Thank you! Here's how... Go to "Settings" Then go to "Email updates" Scroll down to "Updates about your groups" Then go to the name of the group and click "Edit" Then select "Event updates from organizers"

Please go to your Meetup account and make sure you have elected to receive "EVENT UPDATES FROM ORGANIZERS" so that we may e-mail you additional information on this and other events. Thank you! Here's how... Go to "Settings" Then go to "Email updates" Scroll down to "Updates about your groups" Then go to the name of the group and click "Edit" Then select "Event updates from organizers"

Please go to your Meetup account and make sure you have elected to receive "EVENT UPDATES FROM ORGANIZERS" so that we may e-mail you additional information on this and other events. Thank you! Here's how... Go to "Settings" Then go to "Email updates" Scroll down to "Updates about your groups" Then go to the name of the group and click "Edit" Then select "Event updates from organizers"

[Profs and Pints Northern Virginia](https://www.profsandpints.com/washingtondc) presents: **“Doom and Dinosaurs,”** a look at how mass extinctions shaped the dinosaurs and what research on these events tells us about Earth life’s long-term prospects, with Ian Wilenzik, paleontologist and visiting assistant professor of biology at George Washington University. [Advance tickets: $13.50 plus sales tax and processing fees. Available at [https://events.ticketleap.com/tickets/profsandpints/nv-dino-doom](https://events.ticketleap.com/tickets/profsandpints/nv-dino-doom) .] Pity the poor dinosaurs. They lacked both scientific research to help deal with potential environmental catastrophes and places where they could have a beer and discuss it. You, on the other hand, have the opportunity to come to Profs and Pints to hear a fascinating talk on the impact of mass extinctions on dinosaur evolution and what research on dinosaurs tells us about biodiversity and Earth’s current biodiversity crisis. Dr. Ian Wilenzik, who has studied and taught courses on dinosaur evolution, population spread, and extinction, will leave you with a greater appreciation of the resilience of life on earth and how we’re both the product and source of biologically catastrophic events. Many of us are familiar with how a big meteor impact about 66 million years ago wiped out the Earth’s dinosaur population, leaving us only with their feathered descendants, birds. Less well known is how the Earth actually has undergone five periods of mass extinction that wiped out nearly all life, and how dinosaurs arose from one and endured another—both caused by volcanic activity—before meeting their match in the third. To ground his discussion, Dr. Wilenzik will talk about how we study mass extinctions by looking for geologic evidence of volcanic activity, meteoric blasts, and other catastrophic activity and of gaps in the fossil record after them. He’ll also discuss what makes a dinosaur a dinosaur, describing their distinct anatomical features. He’ll talk about how they and other forms of life evolved over long periods of time and were affected by extinction events. We’ll look at how the meteor-caused mass extinction that wiped out dinosaurs at the end of the Cretaceous paved the way for the rise of mammals and the emergence of primates, and, eventually, us. Looking ahead to future mass extinctions and what might survive them, we’ll talk about how that plant you forget to water might have the last laugh, as well as why crocodiles might be around a while. (Doors: $17, or $15 with a student ID. Listed time is for doors. The talk starts 30 minutes later.) Image: A *Triceratops* mounted skeleton at the Los Angeles Museum of Natural History (Photo by Allie Caulfield / Wikimedia Commons).

Join us at the Chess Center offices (Suite 118, entrance on 2nd Avenue) on Saturday afternoons from 1:00 – 5:00pm ET for open play. Players of all abilities and ages are welcome. * Non-Members: $5.00/player table fee for the day. * Chess Center [Members](https://chessctr.org/membership/) always play for FREE ($0.00). Check our social media ([Twitter](https://twitter.com/uschess) / [Facebook](https://www.facebook.com/USChessCenter)) for closure announcements: The Chess Center is closed on major holidays. We also have chess sets, clocks, and [used chess books](https://chessctr.org/usedbooks/) for sale.

What does freedom of speech—and freedom of religion—really mean today? Join us for an engaging and thought-provoking conversation featuring experts from the **National Constitution Center**. Together, we’ll explore the First Amendment’s protections around speech and religion—what they mean, how they’ve evolved, and how they continue to shape our daily lives. This is a welcoming space to learn, reflect, and engage in meaningful dialogue with others in the community. Whether you’re brushing up on your knowledge or diving in for the first time, you’ll leave with new insights and perspectives. All are welcome—bring your curiosity! We'll be in Classroom 1, or you can join us online, via our[ Zoom link](https://constitutioncenter.zoom.us/meeting/register/hc_8FV8yTv6s4DH-i0lMLA). *** ### **Who Should Attend** * Anyone interested in the Constitution or civic education * People curious about freedom of speech and religion * Community members who enjoy thoughtful, respectful dialogue * Students, educators, and lifelong learners * Individuals seeking connection across perspectives ### **What to Expect** * An engaging talk led by experts from the National Constitution Center * Clear, accessible insights into the First Amendment * Opportunities for reflection and community discussion * A respectful, inclusive environment for all viewpoints * A chance to connect with others interested in civic topics