A little fun tractor history, because I can.
If I had to put together a list of 5 tractors to show of significant events in history of tractors that I can actually own it would be:
1. Waterloo Boy - The entry into tractors for John Deere, taking a tractor company that was floundering, but good at engines, and making bringing it to the masses, sorta.
2. Ferguson TE-20 - The tractor that changed the game with the pantented 3-point hitch system.
3. Farmall (Regular) - The tractor that changed the game that could do all of the farm chores and set the standard for future tractors to build from.
4. IH 560 - The tractor that broke the trust of IH fans. Great tractor, but they rushed to market with a bad rear end and it was just one more chink in the armor.
5. John Deere 4020 - The right tractor at the right time that propelled JD past IH by providing more power, reliability and powershift.
To me these are a small show case of significant timelines