What is what holiday is march 25?

March 25th doesn't have a single, universally celebrated holiday. The date's significance varies by culture and religion. Here are some examples:

• Annunciation (Lady Day): This is a major Christian feast day celebrating the angel Gabriel's announcement to the Virgin Mary that she would conceive Jesus. It's particularly important in the Western Christian tradition.

• National Day of Greece: This celebrates the start of the Greek War of Independence against the Ottoman Empire in 1821.

• Other potential observances: Depending on the year and specific location, March 25th might coincide with various smaller religious holidays or secular celebrations. There isn't a widespread globally-recognized secular holiday on this date.

Therefore, the most significant holiday on March 25th is generally considered the Annunciation, but its importance relative to other observances depends on cultural and religious context.