- Introduced in v5, has not changed much in v6 or v7, pronounced "Timeline"
- Timelion is an Elastic {Re}search project into time series
- {Re}search projects are launched by Elastic engineers that want to grab an idea, run with it, and share it
- Brings together totally independent data sources into a single interface
- Driven by a simple, one-line expression language
- Combined data retrieval, time series combination and transformation, plus visualization
- Pulling data from ElasticSearch: .es(*)
- Can pull data from an external source, e.g. World Bank
- Functionality is great, but far from self-explanatory