start of
thread
Marks a 𝕐 post as part of a thread and points at where that thread begins. A 𝕐 month page runs newest first, so the beginning of a thread is further down the page — hence the arrow, a stitched thread that meanders downwards, sitting in the margin on the left of the post with a tiny start of thread caption above it. Hovering it explains why: 𝕐 is written in reverse chronological order; click to jump at the beginning of this thread. Clicking it jumps there.
Put it at the very beginning of a post, right inside the <blockquote>, on the same line as the first words:
<blockquote id="Y-20260803-023412">
{{startthread|August (2026)#Y-20260803-005559}}To Shklovsky again, the pamphleteer, her sister…
The one argument is the anchor of the first post of the thread, exactly as monthnav copies it when you ctrl-click a timestamp: August (2026)#Y-20260803-005559. A thread that started in an earlier month just names that month instead — the link is an ordinary wikilink, so it crosses pages by itself.
It renders as a <span>, not a block, so it does not split the paragraph it opens; it is floated into the 40 px indent a <blockquote> already has, so the post's text column does not move. Its full height is about 60 px, i.e. two and a half lines — on a post shorter than that it will hang a little into the one below.
| Parameter | Default | What it does |
|---|---|---|
1 |
— | anchor of the thread's first post, e.g. August (2026)#Y-20260803-005559 (or Z/August (2026)#Z-20260803-005559 in ℤ). Omitted, the marker still shows but is not a link.
|
branch |
Y |
which microblog this is. Z adds the zthread-start class and names ℤ in the tooltip; anything else is ℤ's sibling 𝕐. The marker looks the same either way — only its tint and its wording follow the branch.
|
label |
start of<br />thread |
the caption. Keep it to two short lines: the margin is 40 px wide. |
tip |
𝕐 is written in reverse chronological order; click to jump at the beginning of this thread. | the wz tooltip. |
Styling lives in MediaWiki:Common.css (.ythread-start, .ythread-note, .ythread-arrow); the arrow is an inline SVG used as a mask over currentColor, so it follows the link's colour and its hover. MediaWiki:Gadget-microblog.js builds the posts, MediaWiki:Gadget-yeet.js isolates one of them, and MediaWiki:Gadget-monthnav.js v1.4 exempts this marker from the click-to-copy it puts on every other #Y-… link, so clicking the arrow jumps instead of copying.