The Influence Map shows who shaped whom. Pick a writer to see the authors who influenced them and those they influenced in turn, or step back and see the whole web of connections across the centuries.

Every line on the map is a judgment confirmed by a person — drawn from the author's own writings and the scholarship on them, and checked before it appears.

No account or sign-in is needed.

Two ways to look

Two buttons at the top switch between the views:

• Focus — one author at the centre, with their influences on either side. This is where the map opens.
• Map — every author on the map at once, placed by date.

The Author menu beside them picks who to look at; the number after each name is how many connections that author has.

Focus

The chosen author sits in the middle:

• Shaped by, on the left — the writers who influenced them, earliest at the top.
• Shaped, on the right — the writers they influenced, in date order.

The panel beside the drawing repeats both lists as text, with each person's dates and, where it is known, the work the influence came through — Teresa of Ávila drew on Jerome through The Life of Teresa of Jesus, for example. Some lines also carry a short note.

Click any name — on the drawing or in the panel — to move it to the centre and see its connections. That is the best way to explore: follow a thread from one writer to the next.

Map

Every author with a recorded connection, laid out left to right by date. The scale is compressed by era — each period gets the same width, so the crowded centuries are not squeezed into a corner — and the dates along the top mark where each period begins. Authors whose dates are unknown sit in a No dates column on the left.

Hover over a name (or click it) to light up just that author's connections; everything else fades back. Clicking a name keeps it lit and fills the panel with its details. Switch to Focus to see that author up close.

Reading the lines and dots

The key at the top right explains the marks:

In the panel, a line may also say taught by or taught for a teacher and pupil, or wrote against and answered by for a dispute, rather than plain influence.

View controls

Five buttons float in the corner of the drawing, as on the timeline:

• ↔ Wide — spreads the view across the full width of your window. On the Map, this also spreads the names out.
• ⛶ Full screen — fills your whole screen; press Esc to come back.
• + and − — zoom in and out. Zooming out fits more on screen with smaller names; zooming in enlarges everything, and you can scroll the drawing.
• ↺ — back to normal size.

Sharing a view

The web address follows you as you click — it records the author at the centre and whether you are in Focus or Map. Copy it to send someone exactly the view you are looking at, or bookmark a writer you want to come back to.

From an author's page

Every author with recorded connections has an Influence section on their own page — Influenced by and Influenced — ending with a link that opens them here on the Influence Map.

Why some authors have few lines

Connections are gathered author by author, as each writer in the library is researched. An author whose own research is finished shows both who shaped them and whom they shaped; one still to come shows only the lines that others point at. The map grows as the research continues.

Tips

• Start with someone you know and follow the names outward, a step at a time.
• On the Map, hover before you click — it is the quickest way to see one author's reach across the centuries.
• Want their works? Click through to the author's page, or find them in Search the Library.
• Want to see them in their time? The Interactive Timeline places every author among their contemporaries.