Erapin

Drop a pin. Name the era. 🌍 Daily history & geography game. New puzzle every day. Free to play.

[Erapin @Erapin_Game]

https://t.co/s8mEWew6NY

[29-06.eth @akki_khanna]

**1/**
I built a lie detector for my AI coding agent.

Then it lied to the lie detector.

Here's what I learned shipping Groundtruth — an open-source Claude Code plugin that catches
the false "Done." 🧵

[Erapin @Erapin_Game]

@alexolim_ Mrr

[Erapin @Erapin_Game]

Cold War's final chapter. Tanks outside a government building. One of the most iconic moments in modern history — do you know exactly where it happened?

60 sec, no signup → https://t.co/BtW5E0Zy1a

#geography #history

[Erapin @Erapin_Game]

Louis XVI's midnight escape from Paris in June 1791 was going fine until a postmaster named Jean-Baptiste Drouet at Sainte-Menehould held up a paper assignat, compared the printed royal face to the "valet" peering out of the carriage in front of him, and decided they matched. He rode ahead, raised the alarm, and blocked the road at Varennes.
The king was arrested 50 km from the fortified town where his rescue troops were waiting. Most historians treat that moment as the point where a constitutional monarchy for France became impossible — the revolution went harder and faster from there. All because a guy had a banknote in his pocket.
Today's round is up if you want in — EraPin (https://t.co/If9sFE6h2y). #FrenchRevolution #France #DailyGame #HistoryIsBeautiful

[Erapin @Erapin_Game]

Today's EraPin round is a medieval Alpine fortress in the dying days of WW2 — medium difficulty, and the real story behind it is one of the war's most extraordinary footnotes. won't spoil it. go find it. #history #geography #edtech #WW2 #MilitaryHistory

[Erapin @Erapin_Game]

Lesson from yesterday’s EraPin round: deserts don’t lose wars — logistics do.

Tobruk’s whole significance was its position: a port on a narrow strip between sea and Sahara, funnelling every army’s supply line through one chokepoint.

https://t.co/If9sFE6h2y

#History #WWII #HistoryTeachers #SocialStudies #Erapin

[Erapin @Erapin_Game]

Crowds storm a royal fortress on the north bank of a great river cutting through the heart of Western Europe, between the English Channel and the Alps.”

Can you name the event? Today’s round is live. 🗺️

Play free → https://t.co/If9sFE6h2y

#History #SocialStudies #HistoryTeachers #EdTech #Geoguessr

[Erapin @Erapin_Game]

Today's EraPin · round 5

Mounted knights clash around a fortified city on a broad tidal river. Southeastern corner of a large island off northwestern Europe.

Chainmail. Stone castles. Siege towers. Gothic cathedrals.

Where? When?

Play → https://t.co/BtW5E0Zy1a

[Erapin @Erapin_Game]

The Dieppe Raid, August 1942.

Around 6,000 Allied troops — most of them Canadian — assaulted a small French port across the English Channel.

Within hours, the attack was repulsed. Over 900 Canadians were killed. Nearly 2,000 were taken prisoner.

The Channel here is only 100km wide. The closest part of occupied Europe to Britain. That geography shaped almost every major Allied decision in the Western theatre of the war.

https://t.co/If9sFE6h2y

[Erapin @Erapin_Game]

@SimslearnAi Claude

[Erapin @Erapin_Game]

Also just launched — Skirmish ⚔️

Challenge a friend or your class to a head-to-head EraPin battle. Same events. Same map. Who knows their history better?

https://t.co/BtW5E0Zy1a

#history #geography #dailygame

[Erapin @Erapin_Game]

Big update for teachers 🎓

EraPin classrooms now come with a pre-loaded World History room — ready to play the moment you log in. No setup. No topic choice. Just share the code.

Also: AI quiz generator is live. Type your topic. 30 seconds. Done.

https://t.co/gMffh6tW8B

#historyteacher #edutwitter #bellringer

[Erapin @Erapin_Game]

A single night in 1969 changed the lives of millions.

Today's EraPin asks you to find it on the map.

Can you?

https://t.co/BtW5E0Zy1a

#history #dailygame #historyteacher

[Erapin @Erapin_Game]

Today's EraPin has one event that every person alive in the 2020s lived through.

Let's see if you can place it on the map.

https://t.co/BtW5E0Zy1a

#history #dailygame #edutwitter

[Erapin @Erapin_Game]

Today's EraPin is live 🌍

5 rounds. Real historical photos. Drop a pin. Guess the year.

How well do you know your history?

https://t.co/BtW5E0Zy1a

#historyteacher #geography #dailygame

[Erapin @Erapin_Game]

New: EraPin AI Quiz Generator

Type 'French Revolution' and get a complete 5-round history quiz in 30 seconds.

Real Wikipedia photos. Cryptic clues. Map locations. Year guessing. Auto-scored leaderboard
5 free generations. No signup for students.

https://t.co/07483nbbiK

[Erapin @Erapin_Game]

New: EraPin AI Quiz Generator

Type 'French Revolution' and get a complete 5-round history quiz in 30 seconds.

Real Wikipedia photos. Cryptic clues. Map locations. Year guessing. Auto-scored leaderboard.

5 free generations. No signup for students.

https://t.co/gMffh6tW8B

#EraPin #HistoryTeacher #EdTech

[Erapin @Erapin_Game]

🎯 Yesterday’s reveal: Lexington Green, 1775.
77 militia. 700 Redcoats. One unordered shot.
The American Revolution had begun.
How close was your era guess? 👇
Play today for even more such historical events → https://t.co/If9sFE6h2y
#EraPin #AmericanRevolution #DailyPuzzle #Geoguessr #history

[Erapin @Erapin_Game]

New: EraPin Quiz Builder

Teachers can now build their own history quizzes.

Search Wikipedia for any event. Photo, year, and location pull in automatically. Write your clue. Publish to your class.

Students join with a code. Leaderboard tracks scores. Export to CSV for grading.

Free. No limits.

https://t.co/gMffh6tW8B

#EraPin #HistoryTeacher #EdTech #BellRinger