Figure 1
An overview of the data production procedure. Data harvested from archival sources were entered into Heurist, a relational database platform in a collaborative environment. Then, the data were cleaned and consolidated for publication. Red arrows indicate steps carried out by the authors.
Figure 2
Map of the Seto Inland Sea region in Japan. The highlighted area shows the ten domains in the Salt Alliance. Meeting locations (except Anyoji, where we could not identify the present-day location) are shown as red dots. Orange dots and grey areas indicate salt sites and salt production zones, respectively.
Figure 3
The clusters of meetings based on the Louvain algorithm. Each node represents a meeting, and each edge represents the existence of participants they have in common. The size of the nodes shows the number of participants in the meeting, and the color shows the cluster. The thickness of the edges corresponds to the number of participants two meetings have in common. The Tempō 12 meeting node has a single shared participant with the pre-famine cluster, shown in red.
Figure 4
The top panel shows the change in the number of participants for each meeting. The colors of points correspond to the cluster from the community detection algorithm. On the panel at the bottom, the y-axis shows the average salt sites for each participant, and the solid line shows the trend calculated by LOWESS (locally weighted scatterplot smoothing).
Figure 5
Visualization of the year of entry and length of participation in alliance meetings. Each dot represents a participant and year of their first attendance to the Alliance meetings, and lines represent their duration of participation in them. Dots and lines in red represent participants from the Nozaki family.