no, i would say that was you, but i dont believe you are actually trying to be stupid, it just comes to you naturallyah, so 200 years of data can cover 4.5 BILLION years?About 4.53 billion years old.
Accurate enough to see that we warming in a major way.
You use the proxy methods worked out by geophysicists. And you go to sites such as this;
NOAA Paleoclimatology Program - NCDC Paleoclimatology Branch
only in your idiotic mind
Are you trying to be stupid? If so, success is yours.
hurry now and chris will cover your back