This is Common Knowledge. My name is James Cullen. I am the host and creator of Common Knowledge, a podcast focused on culture, adventure, language, and the extraordinary experiences of people I have met. I hope to both inform and entertain you through unusual stories of adventure and people's lives. While the primary focus of each episode is the guest interview. I also want to illuminate some unusual parts of life. I consider common knowledge, but you may not be aware of. For example, did you know that to avoid having their ships run aground sailors? Ancient sailors made recordings of water