This diagram has come out of my love for Scripture and the desire to share the whole story that I’ve found in it. It’s the same old gospel truth, the one we embraced when we first started ...

An Italian architectural historian thinks Giacomo Andrea de Ferrera, a Renaissance architect and da Vinci friend, drew the man-in-circle diagram first Leonardo da Vinci's drawing of a male figure ...

Google Doodle Says Happy Birthday To John Venn, Creator Of The Venn Diagram. The man who invented the elegant overlapping circle diagrams would have been 180 today.