'For this reason, any of several dates ranging over 400 years may indicate the beginning of the Little Ice Age:
1250 for when Atlantic pack ice began to grow
1300 for when warm summers stopped being dependable in Northern Europe
1315 for the rains and Great Famine of 1315-1317
1550 for theorized beginning of worldwide glacial expansion
1650 for the first climatic minimum
In contrast to its uncertain beginning, there is a consensus that the Little Ice Age ended in the mid-19th century.'
Wow! Very fascinating and enlightening stuff! Thanks for that!