The answer for this would be the individuals on the island would all appear very alike to individually or each other, and they may demonstrate uncharacteristically high incidences or manifestation of traits that are unusual in the universal human population.
When soldiers went away to war their jobs needed to be replaced to keep the economy stable, women were able to take this opportunity and work in factories for munitions and sewing and many other things, this was a big step in the right direction to gender equality, after WW1 people started to change their attitude and realised that women can work and can do just as good as men in some countries they were given the vote and more opportunities opened for women in different industries and they were able to make a living for themselves instead of being reliant on a husband to get money for their whole family
Unresolved global
conflicts
Unresolved conflicts have started during the World War I
Era. Some of these countries are in constant conflict due to their different
perspective in governance. For example,
the US and its allies continues to fight against the totalitarian nations like
North Korea.
Decolonization an nationalism after world war
II
I think this had a major change on different countries. Many
countries have undergone different cultural influences in terms of music and
art. People have become more open to foreigners.
human rights and civil rights:
working toward social justice
In this part, people have become more aware of their rights.
They are given the freedom of speech. Aside from that, people are also slowly
accepting the gender roles in society.
Globalization.
Globalization continues to grow every day. Many leaders have
been making trade relations with other countries to help improve their economy.
British set taxes on american needs and americans protested causing war and then british revoked the taxes and only left a tax on tea which lead to the boston tea party