An idea that just pop-up in my head...
What if, instead of just Spain that firstly discovered America, it is England, France, Portugal, and Spain who discovered it nearly at the same time, but at different places...?
For example, England landed at Virginia while Spain landed at Carribean Islands in 1492, and France landed at Florida while Portugal landed at Brazil in 1493...
Is this possible? If yes, how? If no, why?
What will be the consequences of this? (both short-term and long-term)