What scripts and Unicode categories are in this multilingual sample?

You posted examples of text in multiple scripts and symbol sets. All of these are valid Unicode characters; below is a brief note on each line and the Unicode categories they represent.

• ASCII: "Hello World 123" — Basic Latin (U+0000–U+007F). Letters, digits and common punctuation.
• Latin with diacritics: "é ñ ü à ö ç ß" — Latin-1 Supplement and Latin Extended (precomposed letters with diacritics; e.g., U+00E9 é, U+00F1 ñ, U+00FC ü, U+00E0 à, U+00F6 ö, U+00E7 ç, U+00DF ß).
• Hindi: "नमस्ते दुनिया" — Devanagari script (syllabic abugida used for Hindi; composed of consonants + vowel signs; e.g., नम U+0928+U+092E...).
• Chinese: "你好世界" — CJK Unified Ideographs (logographic characters used in Chinese/Japanese/Korean).
• Japanese: "こんにちは世界" — Hiragana (phonetic syllabary) plus CJK ideographs for "world" (世界).
• Arabic: "مرحبا بالعالم" — Arabic script (right-to-left, cursive joining).
• Korean: "안녕하세요 세계" — Hangul syllabic blocks (phonetic alphabet).
• Emoji: "😀 🚀 ❤️ 👍🏽 🌍" — Emoji pictographs (some are multi-codepoint sequences; e.g., 👍🏽 is a base thumbs-up plus a skin-tone modifier).
• Symbols: "© ™ € ₹ $ ¥ £ → ∑ ∞" — Miscellaneous symbols and currency signs (e.g., © U+00A9, ™ U+2122, € U+20AC, ₹ U+20B9, → U+2192, ∑ U+2211, ∞ U+221E).

If you want any of these transformed (e.g., Unicode code points for each character, percent-encoding, normalization forms NFC/NFD, rendering/RTL handling, or conversions between scripts), tell me which output you need and I’ll produce it.