The Second Mahdist War

Timeframe: Early to mid-1820s, contemporary with the War of the French Succession
Belligerents: The Crown of All Spains vs. al-Mahdi and his supporters
Consequences: The death of al-Mahdi; collapse of Mahdism as a unified force; Legitimist withdrawal from France; rise of Saxon-aligned Malta as a Mediterranean force

In 1786, Umayyad Seville knew its last year of peace and sovereignty. Seven years later, the Civil War had run its course, and the newly-united Spanish Crown was busily annexing what was left of Moorish Spain. Hisham V [who?], the last Caliph of Seville, was dead. The caliphate was contested by three squabbling, doomed brothers, and his four-year-old son had been smuggled into safety and irrelevance across the Straits of Gibraltar.

During those dark days, his supporters gave him a regnal name of his own: al-Mahdi. And in 1821, with the House of Guise crumbling and a civil war in France, al-Mahdi made his move and crossed the Straits of Gibraltar again.

Asad from Seville

Mahdism doesn't just cause wars. As an ethos and a mythos, its (minor) influence has extended to every aspect of Iberian global culture, Christian and Muslim.

Mahdism has shaped the Ibero-Romance languages, giving them metaphors just like Jacobitism gave English sub rosa IRL. It's established an iconography and a lexicon of motifs (the keys on the necklace, hunter green shot through with silver thread) that are recognized worldwide. It's been a recurring inspiration for a pan-Iberian artistic corpus - especially a lyrical corpus: Mahdism has produced marches favored by directors as far south as the CRC, and its melodies have been set to different lyrics and become recognized as far away as Japan.

That said, though, Mahdism's mostly felt through its violence. It's caused three wars in Iberia itself; it's caused no end of troubles in Spanish North Africa, not counting the infamous Chergui; it is the impetus for considerable terrorism, especially that of the G1200.

The most legendary Mahdist terrorism, though, may have been neither Mahdist nor terrorist. We would call it the work of a serial killer, but when he struck there was no word in any language to describe the carnage he left behind.

That terrorism was the work of a single man, Asad from Seville.

The Chergui

Timeframe: October 1895-April 1896.
Belligerents: The Crown of All Spains vs. Mahdist insurgents.
Outcome: Pyrrhic Spanish victory

In 1893, Yusuf II was faced with a small nightmare: a military standards war. It took the better part of a year to sort it out, and no small investment of money and man-hours, before the Caliphal Army was uniformly issued matching rifles and ammunition that wouldn't explode. The Port-Royal musketoon had prevailed, and the army now faced a problem: what to do with all the noncompliant hardware?

Refitting it was too much trouble; they already had their hands full retooling sights, adjusting barrel lengths, and making similar conversions on thousands of already-assembled guns. Issuing them down the totem pole would force the very logistical nightmare they'd just spent 15 months sorting out. Issuing them to the navy might work, but would still be a logistical headache. (More importantly, the Army Secretary thought the Navy's adoption of .49-94 a decade prior a smashing political victory, one he had no desire to undo.) This being the UCNA, they'd already rechambered a number of obsolete guns for the rejected H11 cartridge - proofs of concept, substitute standards, all sorts of stuff.

The fateful solution was to sell the useless crap abroad.

Mahdism

Talking about Andalusada can be hard. On good days, the problem is that nobody has any idea what the hell I'm going on about, because I can't just link them to the blog and say, "Read all of it." On bad days, though, it's because it involves Islam, and Islam makes people stop thinking.

Well-meaning but clueless people hear that North America is a Spanish-speaking Muslim country, and that's all they hear. Without a chance to get into how it evolves, or what politics can be like in a world with steampunk social science, they immediately conclude that the UCNA is a superpower Islamic Republic of Iran; it's only because I live in a decent part of the country that I haven't heard the word "Islamofascist" used yet.

Which is a shame, because there's a joke that I could make, and nobody who used "Islamofascist" would get it: This is Islamic Spain I'm talking about. They have Islamo-Carlism instead.

Mahdism 101 ("Onward to the twelfth century!")

Mahdism's goal can be summarized with a single four-digit number: "1200." That's 1200 AH for all you dhimmis out there - 1786, the last stable year in the history of Umayyad Seville. Logically or semi-logically, that goal entails the following things:

• Andalusi independence: Mahdism is nationalist, not regionalist. While most of them would be quite happy to give the Crown of All Spains a taste of its own medicine by taking over Castilla as well, the key goal isn't retribution; it's the restoration of Seville as a state in its own right.
• ...as a caliphate: Mahdism isn't exactly "Islamist" in our sense, but it's certainly Muslim; what was once a metropolis and cultural capital has been turned into an emigration society, and the emigrants are overwhelmingly Moors who are disadvantaged under the new state Catholicism that (incidentally) doesn't benefit the Mozarabs that much either.
• Because Seville's common law was abolished after the First Mahdist War, "restoring the caliphate" implicitly also means "restoring the prewar legal codes," which would restore a lot of the old Moorish khassa to prominence again. (It would also mean that a lot of poor Moors would suddenly own small amounts of Old World land.)
• ...ruled by the House of Umayya. Originally, this was the legitimist claim of al-Mahdi. In the wake of his death, that cult of personality has diffused into a cult of dynasty. Although any serious Mahdist pretender will have a cult of personality, Mahdism as a whole is devoted less to the individual than to the continuing succession of the first, greatest, and only true rulers of the Islamic world.
• Specifically, this means "under an Umayyad descended from al-Mahdi." There's a fair number of them at this point. Pretenders are always styled Mahdi, and their mothers "Umm Mahdi" as an honorific.

Or at least that's how it's supposed to work.