There was an interesting study here [1].
They researched the prevalence of cancer in ancient societies using a variety of methods - remains, reporting, etc. The goal was to determine whether the relative lack of cancer in ancient societies was driven by some sort of external factor such as inability to detect cancer in remains, poor reporting, lower life expectancies, etc or rather it was simply because cancer was simply much less common. The evidence available tends to point very much towards the latter which, in turn, suggests that we have created environmental conditions which are driving cancer. The paper references two papers which have pointed to general pollution as a major potential driver there.
Death rates are not a relevant measurement on this topic either since they're heavily confounded by increase in survival rates. You need to look at incident rates, which continue to increase worldwide. Even lung cancer is now on the rise among females.
[1] - https://www.nature.com/articles/nrc2914