the 'built by hand, no machines, 2000 years, still farmed today' Banaue terraces claim — actually checked it

Saw a reel going 'the Ifugao rice terraces in the Philippines are 2000 years old and were carved by hand with no metal tools and they still work' and assumed it was inflated TikTok history. So I read up because that's my whole personality apparently. Banaue, north Luzon, Ifugao people. The 2000-year……