# 1986: Lara-El visits the Kent Farm on Earth. Her niece, Kara, arrives and learns that Jor-El and Lara are expecting a child, whom Kara names "Kal-El." Zor-El finds Kara and Lara, and after revealing he almost killed Jor-El and got DNA from Lara and himself to create clones, erases Kara's memory. (Source episode: Lara)
* Kal-El is born on Krypton. (Source episode: Pilot)
* Doomsday is created by General Zod and Faora using their own DNA and using other violent Krypton DNA as well. (Source episode: Bloodline)
* Krypton is destroyed by Zor-El. Before the planet meets its end, Jor-El and Lara place Kal-El inside a spaceship and send him off to Earth; they are unaware that Brainiac attached Zod and Faora's genetically engineered son Doomsday to the ship.
* Zor-El puts Kara inside a spaceship and sends her off on the same trajectory as Kal-El after she found out about his plan to destroy Krypton and so he erased her memory with him being injured during a struggle. (Source episodes: Memoria, Apocalypse, Kara, Bloodline, Legion)
http://smallville.wikia.com/wiki/Timeline