Major World Events of 2025 Shaped Global Politics and Technology

Political Upheavals and Violence Define the Year

As the year comes to a close, AJ Labs has compiled an A to Z list of names, places and issues that generated sustained interest throughout 2025, according to a loose analysis of our own most-viewed story tags and those that appeared in Google's most searched. Taken together, these terms are a patchwork of issues that are also likely to spill into 2026, from ongoing conflicts to a changing technosocial landscape not seen since the dawn of the internet.

Conservative activist and media figure Charlie Kirk became a central and controversial figure in 2025 following his assassination, which sent shockwaves through US politics and globally. On September 10, he was shot dead near where he was engaged in a debate at Utah Valley University. His assassination triggered reactions across the political spectrum, and intensified debates around political violence and extremism in the US.

In December 2024, South Korea was thrust into a political crisis after then-President Yoon Suk Yeol declared martial law, citing rising unrest and an alleged threat to national security. A year on, prosecutors indicted Yoon Suk Yeol for insurrection on December 15, accusing him of seeking to provoke military aggression from North Korea to help consolidate his power. Earlier this month, special prosecutor Cho Eun-seok told a briefing that his team had indicted Yoon, five former cabinet members, and 18 others on insurrection charges, following a six-month probe into his declaration of martial law last year.

Artificial Intelligence and Cryptocurrency Surge

AI adoption is rapidly growing, and some of the biggest conversations this year have been on how it will shake up the workplace and reimagine economies. In October, the Reuters Institute carried out a survey in six countries and found that the proportion of respondents who said they used a generative AI system such as ChatGPT jumped from 40 percent to 61 percent this year.

According to UBS projections, global annual AI spending is expected to swell to $375bn by the end of the year before topping $3 trillion annually by 2030 - this includes spending on AI infrastructure, as well as power and resources for electricity demand.

Bitcoin surged to new heights in 2025, driven by institutional inflows and the maturation of crypto ETFs in the US. President Trump positioned himself as the "crypto president," and propelled family crypto ventures and the broader sector into the mainstream. On October 6, Bitcoin reached an all-time high of $126,080, marking a defining moment for the digital asset, before reminding investors how quickly momentum can reverse as it finishes the year at $88,400.

Global Conflicts and Humanitarian Crises

As 2025 comes to a close, here are the ten most notable world events of the year. Anyone hoping that 2025 would provide a break from what was an exhausting 2024 on the world stage came away disappointed. The past twelve months have been a trying time for international cooperation, as the forces of conflict and contention grew stronger and the end of the American led world order more clearly came into view.

Those gains came at a frightening cost, with Russia losing roughly one thousand soldiers every day. Ukraine's losses are far lower, but its population is just a third of Russia's. Experts debate how long Russia and Ukraine can continue fighting, though Ukraine's position looks more precarious.

A father and son open fire on a Hanukkah celebration at Bondi Beach in Sydney, Australia, killing 15 people and injuring more than 40. The gunmen—one of whom was fatally shot by police—were said to be motivated by "Islamic State ideology." The Bondi Beach shooting is the deadliest terrorist incident in the country's history.

Looking Ahead to 2026

After Trump, the most talked about US politician in 2025 might just be Zohran Mamdani, who became New York City's first Muslim, South Asian and African-born mayor by winning 50.8 percent of the vote. This historic election reflects the changing face of American politics as the country grapples with questions of representation and identity.

The year's events reveal a world in transition, where traditional power structures face challenges from emerging technologies, political violence, and shifting global dynamics. The stories that dominated 2025 suggest that the coming year will require careful navigation of these complex forces that continue to reshape our interconnected world.