For instance, Serbia is believed to have lost between 16% and 27.8% of its population during the war, placing it among the hardest-hit nations in proportional terms.

Meanwhile, Western European nations such as France lost around 4.3% to 4.4% of their populations.

These figures help explain why social and political life across Europe and beyond was permanently transformed: a generation of young men lost, entire communities disrupted, and the demographic shock rippling into post-war unrest and reconstruction.

For smaller states or those deeply entangled in fighting, the losses were especially devastating.

In today’s global context, the map also resonates with how we understand modern conflict and its ripple effects. As the world watches ongoing conflicts, whether in parts of Africa, Eurasia or the Middle East, the notion that war doesn’t just kill those who fight but also destabilises societies remains painfully relevant.

Furthermore, remembrance efforts continue to highlight the war’s legacy. In northern France, for example, dozens of remains of WWI soldiers are still being discovered each year, an enduring testament to how the conflict’s footprint remains in the landscape.

The remains of a World War I soldier unearthed during construction work in France were laid to rest on Wednesday, June 12, 2025. Serjeant Henry Ashton from Derbyshire, who lost his life at the age of 44 in 1917 during an operation near Lens, received a dignified burial more than a century after his passing.

"It has been a privilege to identify Sjt Ashton, and to be able to organise this burial service for him. When you consider the half a million men still missing from the First and Second World Wars, every one we can identify feels like an achievement," Alexia Clark, the UK's Ministry of Defence's War Detective, said.

The map shows how school grades are awarded from “worst” to “best,” with ranges like 0–10, 1–5, 0–20, and even 1–100 appearing in different nations. While superficially this might look like a quirky oddity, it actually reveals deeper truths about how schooling and standards operate in Latin America .

For one, when students and transcripts cross borders, for university admissions or migration , these differences complicate things. A “7” in one country might be equivalent to a “C” in another, while a “14” on a scale of 20 might translate differently again.

According to a global overview of grading systems, South America frequently uses numerical scales like 1–10 or 0–20 instead of the letter-grade models seen elsewhere.

In particular:

These variations matter not just academically, but socially: they mirror differences in school resources, quality of instruction, and the rural-urban divide across Latin America.

For example, a recent review points out that the educational systems in South America are characterised by “inconsistencies and largely correlate to the economy of the countries” — meaning that how you’re graded may depend heavily on where you live and the school you attend.

What the map shows at a glance

The global and contemporary link

This diversity of grading scales comes at a moment when higher education and student mobility are more international than ever. For example, with the rise of online learning, cross-border student exchanges and global credentials, universities must interpret these varied grading systems.

Meanwhile, more broadly, Latin America is facing intense pressure to improve educational outcomes.

A recent study analysing data from the Programme for International Student Assessment (PISA) 2022 for nine Latin American countries found significant “efficiency gaps” between public and private institutions, meaning that even given the same resources, outcomes varied sharply.

Grading systems, and their interpretation, become one piece of this larger puzzle of equity, access and quality in education.

While COVID-19 intensified the emotional strain, Gallup’s findings show that this trend predates the pandemic. The causes, researchers say, vary across regions, but one theme keeps emerging about technology and polarisation.

"So, if we look at things like the rates of worry, 39% of the people we interviewed in 2024 reported that they experienced a lot of worry the day before. When we first started tracking that data in 2006, it was only at 30% and so 9% of the global population is a big portion. And we see similar patterns for the other emotions —stress, physical pain, anger, and sadness — over that time frame. With a lot of those gains really coming in the last few years, and it's something that troubles me when I look at this data," Dan Foy thr Global Research Director at Gallup, told Global South World.

In many regions, particularly post-Soviet Eurasia, perceptions of safety have doubled over the last 20 years.

These are countries that have undergone significant political and social transformations, moving from instability toward greater structure and governance.

In Sub-Saharan Africa, the sense of safety has slipped, from 58% to 53%, and in Latin America and the Caribbean, only half of the population says they feel safe walking alone at night.

With this paradox, the world has a long way to go in achieving a balance between the safety and emotional health of its people.

Watch the full interview attached to the story for more insight.