The Great Adventure Bible TimelineTM color system
The twelve colors on the tabs correspond to the twelve periods of Salvation History. The Bible Timeline divides salvation history into twelve time periods and places each book of the Bible with its appropriate period. Knowing where each book belongs helps you to get the "big picture" of the Bible.
The twelve periods and colors are:
Ascension - website
Facebook Group: Ascension Catholic Bible Studies
Ascension - The Bible in a Year Reading Plan
Ascension Podcast - The Bible in a Year by Fr Mike Schmitz
Facebook Group: Fr Jim's Bible in a Year study/support group...
Excel Document: The Bible in a Year daily tracker - (updated 09/26/2021)
Website: BibleGateway - searchable online Bible
Website: BibleMaps - maps for different Biblical areas and times
Website: Bible Concordance - English to Greek and Hebrew interlinear (shown together)