We asked listeners to send us their best coincidence stories, and we got more than 1,300 submissions! There were so many good ones that we decided to make a whole show about them. From a chance encounter at a bus station to a romantic dollar bill to a baffling apparition in a college shower stall.

Start aLife Partners free trial to watch our new video A Night of Stories and Improv.

(00:00:00) Prologue: Hannah Jacoby tells the story of when she and her best friend Lindsey bonded over those toy soldiers with the parachutes, called (really) Poopatroopers — and how the little jumpers perfectly bookended their high-school years. And guest host Sarah Koenig explains the very interesting trends we discovered in our listeners' coincidences. (9 minutes)

(00:09:23) Act One: A surprising number of coincidences involve grandmothers. One grandma has so many coincidences happen to her that it drives her granddaughter, 16-year-old Juliana Bontrager, to try to beat her at her own coincidence game. We also hear from Blake Oliver about a very strange appearance his grandma once made. (9 minutes)

(00:18:27) Act Two: When it comes to love, coincidences tend to loom extra-large. Stephen Lee tells about the time his parents first met his fiance’s parents, and his future mother-in-law dropped a coincidence bomb. And we hear how a dollar bill ended up clinching a marriage, after floating around Chicago for years. (10 minutes)

(00:28:15) Act Three: Ryan Rozar told us about a confounding coincidence that was visited on him in college. We didn’t think it was a coincidence at all, so we set out to prove him wrong. (8 minutes)

(00:37:31) Act Four: More stories of dazzling coincidences: an old boyfriend is conjured in Morocco, a jazz singer seems to rise from the dead, and three boys believe they’ve seen a corpse. Plus stories of errant fathers, lost and found. (13 minutes)

(00:49:47) Act Five: Kerry Weeks tells about the time he lost a pocketknife and turned to the galaxy for help. (7 minutes)

Transcripts are available at thisamericanlife.org / This American Life privacy policy. / Learn more about sponsor message choices.

Sayre Quevedo’s invented a way to do a podcast that feels completely new. He’s been recording nearly all his conversations for years, and the result is something that captures a person’s life in a raw and complicated way that’s rarely heard. His new show Reaching Out also documents his mutually judge-y relationship with his twin brother as they set out to find their long-lost birth father.

Visit thisamericanlife.org/lifepartners to sign up for our premium subscription.

(00:00:00) Prologue: Ira Glass introduces Reaching Out, a podcast that feels like it invented something completely new — an ambitious way of capturing a life in a way we'd never heard before. (1 minute)

(00:02:39) Part One: Sayre Quevedo and his brother start the search for their birth father, and they discover that this whole time he’s been a few minutes away from where Sayre lives. (20 minutes)

(00:21:57) Part Two: The twins try reaching out in a variety of ways before taking more direct action. Sayre tries to continue life as normal. (12 minutes)

(00:34:00) Part Three: Sayre and Connor go in person to face their dad. (24 minutes)

Transcripts are available at thisamericanlife.org / This American Life privacy policy. / Learn more about sponsor message choices.

We discover what we believe might be the original recipe for Coca-Cola…and share it with you! When this episode first aired in 2011, it made international headlines. This, and another story about telling copies from originals.

Visit thisamericanlife.org/lifepartners to sign up for our premium subscription.

(00:00:00) Act One: The formula for Coca-Cola is one of the most jealously guarded trade secrets in the world. So we were surprised to find a 1979 newspaper article that appeared to show Coke's original recipe. We spoke with historian Mark Pendergrast, author of For God, Country and Coca-Cola, and were even more surprised to find reasons to believe the recipe is real. (25 minutes)

(00:26:26) Act Two: Jake Halpern tells this story about document expert John Reznikoff, who came into possession of some materials which—if authentic—would change history. Then things got complicated. (32 minutes)

Transcripts are available at thisamericanlife.org / This American Life privacy policy. / Learn more about sponsor message choices.

Moments when it seems obvious what to do for someone else, so of course you jump in and try to help — and what happens after that.

Visit thisamericanlife.org/lifepartners to sign up for our premium subscription.

(00:00:00) Prologue: Devon Taylor tells host Ira Glass about a time she confronted people who stole $100 from her. (12 minutes)

(00:12:01) Act One: We get to an age when we find ourselves taking care of our parents, whether they want us to or not. Writer Kristen Roupenian wrote this piece of fiction based on something real that happened to a family she knows. (20 minutes)

(00:33:37) Act Two: Two chatbots, stuck in a loop, each trying to help the other. Will they ever break free? (20 minutes)

(00:55:48) Act Three: In Utah, some communities have been fighting measles outbreaks for 14 months. These are some of the longest-running outbreaks in the country. But one of our producers, Miki Meek, heard about how school nurses in a town called Vernal helped end its outbreak in just six weeks. Miki finds out how they did it. (9 minutes)

Transcripts are available at thisamericanlife.org / This American Life privacy policy. / Learn more about sponsor message choices.

People braving the true final frontier — the gap between people born at slightly different times.

Visit thisamericanlife.org/lifepartners to sign up for our premium subscription.

(00:00:00) Prologue: Last fall, some NPR podcasts started getting mysterious comments on Spotify. They made no sense to the staff reading them – until someone from a younger generation cracked the code. (11 minutes)

(00:12:00) Act One: When Courtney Maum was eighteen, her mother married a guy she despised. At their wedding, Courtney read a poem she wrote – a pretty dark poem! – which made her mother furious. More than 30 years later, they finally talk about it. (27 minutes)

(00:41:53) Act Two: When Ike Sriskandarajah was a teenager in Madison, Wisconsin, he thought he had the greatest job. He worked at the movie theater, wore a cummerbund, and snuck friends in through the back door! It was magical. That was more than 20 years ago. Is it still as great as he remembers? Ike goes back to find out. (8 minutes)

(00:50:27) Act Three: Every morning, Myra Flynn finds herself in a standoff with her daughter over her hair. Recently, to understand why these hair sessions are so fraught, Myra started recording them. What she heard sent her on a quest to get answers from her own mother. (11 minutes)

Transcripts are available at thisamericanlife.org / This American Life privacy policy. / Learn more about sponsor message choices.

Nikole Hannah-Jones made an argument 10 years ago in The New York Times Magazine that became famous. She wrote about choosing a public school for her daughter, Najya, in one of the most racially and economically segregated school systems in the country: New York City. Nikole chose a regular public school, one that most wealthy and middle-class parents wouldn’t consider, and she challenged other parents to do the same. She revisits that argument, and that choice, in a series of conversations with producer Chana Joffe-Walt and with her daughter, Najya, who’s now 16 and has her own very different views.

Visit thisamericanlife.org/lifepartners to sign up for our premium subscription.

(00:00:00) Prologue: Chana talks with Nikole about what they both remember from being young parents just starting to think about schools for their children. (9 minutes)

(00:10:41) Act One: Nikole talks with Chana about Najya’s elementary school and the problems her family navigated there. (15 minutes)

(00:25:57) Act Two: Chana talks with Najya about her memories of elementary and middle school and how she felt about her mom’s choices. (9 minutes)

(00:31:40) Act Three: Nikole and Najya talk about what changed when Najya pushed back against her mom’s choices for elementary and middle school and got to choose her own high school. (10 minutes)

(00:42:08) Act Four: Nikole and Najya talk with each other about the different choices they made and the questions they still have for each other. (9 minutes)

(00:51:06) Act Five: Nikole fact-checks her memory against her old emails with Najya’s elementary school and has a painful revelation. (7 minutes)

Transcripts are available at thisamericanlife.org / This American Life privacy policy. / Learn more about sponsor message choices.