What event/disease happened between 1840-1850 that increased the death rate if children?

Question

I have a graph of the death rate of certain cohorts (males born in 1840, females born in 1900's, etc) On the graph there is a sharp increase in the number of deaths among people age 0-10 that occured in 1840. Can any historical event that could have caused this increase. 2) ALSO for those born in 1900, there death rate sharply increased between the ages of 60-80. So this occured in 1960-1980-any historical event that could have wiped out middle-age individuals.3) ALSO FInally for those born in 1800, death rate sharply increased around age 50-70 so this would be between 1850-1870 (any events that culd have occured)??? Please help

Answer 1

1840s... no answer I can think of that hasn't been said, unless maybe the pollution was raised.

1850-1870 deaths:
Worldwide:
USA: Civil War (most ever able bodied man fought in that)
Europe: Napoleon

Another idea is the same pollution from the 1840s. I don't know if any of these are really going to help you out though.

1900 birth to 1960-1980 death.
Living through the effects of:

The Great Depression (my 80+ year old grandad has false teeth because of poor health care at that time)

WWI: First widespread use of nerve and mustard gas which does have long term effects

Also realize that even if they did not fight in them they had the stress of world changing events like:
WWI, Great Depression, WWII, Korean War, Vietnam War, Cold War... these were very stressful times.

Lastly, they were 60-80, which is maybe a tad on the young side, but still not too young, especially on the latter end, to die of old age.

Answer 2

The main event between 1840 and 1850 was the Irish Famine in which over a million people died.

Answer 3

technically, seeing that after the 1st time they are already 0.5 ineffective, the 2d 0.5 could incredibly be 1 / 4 of the preliminary aliveness. so as that they could be 3 quarters ineffective after the 2d time being scared 0.5 to demise. that's an exponential decay element.

Answer 4

i think there was a death rate in children, because they started working in factories