# The PYTHIA Event Generator: Past, Present and Future

## TL;DR

This paper reviews the development history, current status, and future plans of the PYTHIA event generator, a crucial tool in particle physics simulations, highlighting its evolution and key components.

## Contribution

It provides a comprehensive overview of PYTHIA's evolution, detailing major physics components and development decisions, and discusses future directions.

## Key findings

- PYTHIA has evolved significantly since its inception.
- Major physics components have been developed and refined over time.
- Future plans aim to enhance PYTHIA's capabilities and accuracy.

## Abstract

The evolution of the widely-used PYTHIA particle physics event generator is outlined, from the early days to the current status and plans. The key decisions and the development of the major physics components are put in context.