They all come with an introduction that offers some context about the writer and some key social history of the period as well—stuff like the currency racket in Death on the Riviera has all been explained nicely before you actually plunge into the mystery and get confused.
It says how long ago something was said, so you can tell last month
from 2014 without doing the arithmetic. Full and green is recent; it
drains and cools as the date gets older, and empties completely at about
6 years.
6d5 days ago
8mo8 months ago
2yr2 years ago
4yr4 years ago
9yr9 years ago
A striped bar means the date itself is an estimate — the source did
not carry an exact one. An entry with no date at all gets no bar.