A Key Event

One of the most important event in Pokémon history is when Ash and Pikachu were attacked by a flock of Spearow. If that never happened, then everything between Ash and Pikachu would be different.

''' Spoiler Warning! '''

How the moment started: When Ash and Pikachu began they're Pokémon journey, Ash spotted a Spearow, which he thought was a Pidgey. He then wanted Pikachu to attack it, but as stubborn as Pikachu was then, it didn't attack the "Pidgey". When Pikachu didn't attack the "Pidgey", Ash threw a rock at the "Pidgey" and made it mad. Then Ash realized that the "Pidgey" was actually a Spearow, and the Spearow started to attack Pikachu, thinking that Pikachu was the one who threw the rock. In order to defend itself, Pikachu shocked the Spearow, thinking it was safe, until the Spearows flock appears behind a tree.

 End of Spoiler Warning 

Now, I won't tell you what happens next, so you can go find out if you don't know. If there are any other important moments in Pokémon history, post them on my Message Board.