Also known as 'US History on CD-ROM', this disc works on both classic Macs and PC DOS.
An excerpt from the 'About US History on CD-ROM' document included on the disc:
You are using US History on CD-ROM, of one of a series of CD-ROM databases published by Bureau Development, Inc. This product allows you to search by word, author, title, or subject, and contains 107 books and over 1,000 pictures, illustrations, and tables.
US History on CD-ROM is appropriate for students, researchers, teachers, professors, and anyone who has an interest in US History.
This is a hybrid CD-ROM for DOS PC & Mac.
Basilisk likes to crash when you quit DiscPassage version up to 1.4.5, but works fine otherwise.
To get the CD-ROM recognized by DiscPassage, you may need to write-protect it, either in your host operating system or within the emulated Mac OS system.