clue may help it!!

$ The first person on left side produced the earlier theoretical study of population dynamics in that year.

$ the other person discovered the link between heat and friction in the same year.

$ third one is a cartoon of a rebellion that took place in a Europe in thae same year.
hope these clues favoured your way to the answer.

RAIN AND PAIN

RAIN

BRINGS ME PAIN

DROPS SAILING DOWN

TO MY INNER CONSCIENCE

AS IF IT WERE DROPS OF ACID

MAY I CALL IT LOVE

MELANCHOLY IT SERVES

A SIGH OF RELIEF

ONLY DEATH CAN

BRING IT!

ROSE PETALS

Rhythm of life
Opening in front of me
Sailing to my heart
Entering slowly


Piercing the darkness
Enlightening my mind
Telling the saga of happiness
And that great thing is
Love and love alone
Saynora!!!!