A mother and daughter walking along Lake Michigan found messages which were written before one of the moments in history.

Amy Gasaway and her daughter, Amanda Butler, routinely take strolls along the sand of Lake Michigan near Grand Rapids, according to FOX 17. Both have a habit of combing through the scenery for small trinkets home can be taken by them, such as beach glass and driftwood.

But on one recent walk, the two came across something out of the ordinary.

“As we were going through the debris, I had been using one of the driftwood pieces,” Gasaway told the news channel. “I kinda grabbed this bottle top. ”

What they found hidden along the beach was a Pepsi bottle with a sign reading “open merdquo; inside.

“So, as we got into open it,” Butler explained, “we found a class project for an AP class of English out of Clayton, Indiana. ”

The project included three letters, the first written by an Honors English teacher called Diane Flint at Cascade High School in Clayton, Indiana, according to CBS. In her letter, Flint explained that two of her students had written notes to place in the bottle in the hopes that somebody would send them a message back.

The students, Zachary Catlin and John Thomas, were both 15 years old at the time, they explained in the letters. Catlin talked about his dreams of being a geologist, while Thomas wrote about how he loved to play the guitar and sleep.

As Butler and Gasaway read their messages, they soon noticed the date they were written: September 10, 2001, a day ahead of the 9/11 attacks.

“I’m sure they had no clue whatsoever how the world was going to change in front of them,” Gasaway told FOX of the surprise.

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The morning after the students penned their letters and tossed the bottle containing them in the waters of Lake Michigan, nearly 3,000 people would perish in attacks orchestrated in New York City, Washington, D.C. and Pennsylvania, and forever changed the course of history for America and countless nations around the world.

“It really makes you wonder you know, what these young guys have gone through since then,” said Gasaway. “There’s been a lot of changes since 9/11, because they wrote these. ”

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Now the mother-daughter duo wish to track down the students in the hopes that they can give them a few of the treasures, and the letters back they’ve found along the beach in Michigan.

“We’re also curious at how many of these came back from their project, you know? ” Gasaway said, according to FOX. “Is this might be among the last few out there? Were there ever any found, you know? We do have a few questions for them. ”

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