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About this visualization

Nodes

Each circle represents a person, whereby size indicates importance based on correspondence volume in the Bullinger Corpus. It is proportional to the number of letters sent and received. Note that the maximum size is clamped to the second largest node, as Bullinger himself is an outlier in correspondence volume.

Geographic colour mapping

Color indicates the main location in a year, i.e., where the most correspondence was exchanged. A place's colours are based on its coordinates, whereby:

• Direction from Zürich → hue (color family)
• Distance from Zürich → saturation (strength of color)

The colour-coded locations are shown on the map below:

Edges

Edges show relationships active during the selected year.

• Grey edges represent team relationships based on greeting data*.
• Black edges represent actual correspondence (letters sent/received).

In both cases, the thickness is exactly the number of mentions/letters in the selected year.

*The greeting data was used as follows:

• If a sender sends greetings from somebody, that person is considered part of his team and gets an edge to the sender.
• If a sender sends greetings to somebody, that person is considered part of the addressee's team and gets an edge to addressee.

Time

The slider filters the network to a specific year.

The play button animates the historical evolution.

Interaction

• Hover: highlight connections
• Drag: move nodes
• Click: open biography
• Toggle: show/hide correspondence edges