Claire notices that the writing on the paper is done in modern ballpoint ink, which could not exist in the 1700s. This revelation directly prompts them to finally tell Young Ian the truth about Claire being from the future.
Claire writes down advanced 20th-century medical and contraceptive advice under the pseudonym "Dr. Rawlings" to distribute to women. Outlander - Season 5
The most iconic use of paper in Season 5 occurs between Brianna and Roger. Claire notices that the writing on the paper
Paper serves as the ultimate proof of time travel for Young Ian. Rawlings" to distribute to women
To celebrate their first wedding anniversary, Brianna makes Roger a paper airplane.
Claire’s secret medical advice ends up published in the local paper, sparking tension and suspicion among the strictly traditional 18th-century community. 📝 The Ballpoint Pen Journal (Episode 11, "Journeycake")