1. Title. When did it take place?

Title Line 2: Set the time of the crossing by establishing the Departure and Arrival dates (to whatever detail you know).

Explanation: Move the Top Slider Button to set the departure date (or, if you don't know, the earliest-possible date) of the crossing (currently 1600). Use the Bottom Slider Button to set the arrival date (or if you don't know, the latest-possible date) of the event (currently 2019). These two dates will be used to generate a candidate Line 2 for your Title TextBox.

Your Title Text Box contents are currently:
Line1: " "
Line2: "A Thread in the Great American Tapestry"
Line3: " "