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Alfonso Calderon (activist)

Spanish-American activist against gun violence

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionAug 25, 2026
Entity authorityQ50957278 ↗
Source-derived summary

Alfonso Calderón Atienzar (born October 10, 2001) is a Spanish-American student activist against gun violence. He is a survivor of the Stoneman Douglas High School shooting and a founding member of the Never Again MSD movement.

Early life

Calderon was born in a Spanish town outside Madrid called Alcobendas, and he has been living in the United States since 2008.

Parkland shooting

On February 14, 2018, 17 students and staff members of Marjory Stoneman Douglas High School were killed and 17 others were injured in a mass shooting. At the time, it was the deadliest school shooting in U.S. history.

During the school shooting, Calderon was locked in a closet with fellow students for three to four hours.I was in a closet, locked for four hours with people who I would consider almost family, crying and weeping on me, begging for their lives. I understand what it’s like to text my parents, ‘Goodbye, I might never ever, ever get to see you again. I love you.’ I understand what it’s like to fear for your life.At the time of the shooting, Calderon was 16 years old and junior at the high school.

Activism

Four days after the shooting, Calderon and others had co-founded an activist movement they named "Never Again", which advocates for stricter background checks prior to gun purchases.

Calderon was one of the surviving students interviewed by Lulu Garcia-Navarro of NPR that same night.

Editorial summary

“Alfonso Calderon (activist)” enters the record as spanish-American activist against gun violence. Crown Archives preserves that source wording while asking what Alfonso, Calderon and activist can confirm, complicate or overturn.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—2001, 2008, 2018—that can be checked directly. The linked authority record independently contributes the date 2001-10-10. Its strongest next move is a source search built around Alfonso, Calderon and activist.
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“Alfonso Calderon (activist)” is worth following because a concise public description often conceals a longer documentary argument. Here, Alfonso, Calderon and activist provides the most credible route into that argument.

Evidence profile

Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Aug 25, 2026. The linked authority identifier is Q50957278. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2001, 2008 and 2018.

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Source & attribution

This entry incorporates text from “Alfonso Calderon (activist)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.