Greece argued the name implied territorial claims on its own region of Macedonia. It was resolved with the Prespa Agreement in 2018.

The 1998–2000 border war was triggered by a skirmish in Badme. A boundary commission awarded it to Eritrea, but Ethiopia occupied it until 2018.

The 2018 National Defense Strategy signaled a shift from counter-terrorism to Great Power Competition (Russia/China).

Ireland repealed the Eighth Amendment via a referendum.

The movement began as a protest against fuel tax increases.

Leonardo kept thousands of pages of notebooks (codices) filled with sketches, scientific diagrams, inventions (like flying machines), and anatomical studies, embodying the 'Renaissance Man'.

Xishuangbanna Forest, in China’s Yunnan Province, was part of 2025 studies showing increased tree diversity enhances reforestation resilience, as per a web source. Changbai, Wuyi, and Hainan were not highlighted, making Xishuangbanna Forest the correct choice.

Sermeq Kujalleq, also known as Jakobshavn Glacier, in Greenland, moved faster than expected in 2025 studies, contributing to sea level rise, as per a web source. Helheim, Kangerlussuaq, and Petermann are also active but less emphasized, making Sermeq Kujalleq the correct choice.

Vatnajökull Glacier, covering 8,100 km² in Iceland, is Europe’s largest, with 2025 studies of its blue ice caves formed by meltwater, as per X posts. Langjökull, Mýrdalsjökull, and Svínafellsjökull are smaller, making Vatnajökull Glacier the correct choice.

The Atacama Desert, spanning 105,000 km² in Chile and Peru, is the driest desert, with 2025 studies finding living microbes, as per a web source and an X post. Patagonian, La Guajira, and Monte are less extreme, making Atacama Desert the correct choice.